White Dwarf Stars, White Dwarf Candidates, Blue Stars and Blue Starlike Objects
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I am going to start a collection of White Dwarf Stars and WD candidates. I understand they show up as bright blue dots in the SDSS images.
Is Galaxy Zoo or one or more astronomers interested in a White Dwarf Discussion? I'd like to list the known WD stars and the bright blue stars that to my knowledge are not listed as WD stars, and might or might not be WD stars.(Has there been a white dwarf discussion on the GZ forums?).
The blue star in this image might be a white dwarf, but I can't find any data on SIMBAD.
AGZ0005zla - 1237680328407974230Posted
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by Budgieye moderator
We used to see a lot of white dwarfs in Galaxy Zoo 2. Now in Galaxy Zoo 4, we see only galaxies, ie "not round".
http://talk.galaxyzoo.org/#/subjects/AGZ0005zla
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237680328407974230
4.5 white dwarf stars, neutron stars http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4&comment_id=53d8b9d1db90c76202001111
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Thanks Budgieye, some more links to check out 😃
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I can't log in on the forum and that prevents me from using the search function. And I can't check 80 pages per blue star I find. Even I have my limits, LOL.
Solution. I am going to post the blue stars I find here, and mention whether they are a blue dwarf, a blue dwarf candidate or just a blue star found by me.
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White Dwarf - PG 2354+159 :
AGZ0005dhu -1237679454924767246White Dwarf Candidate - SDSS J205528.93+162730.6 :
AGZ0002tpf - 1237666245210866385White Dwarf SDSS J034259.15-065558.2
AGZ0001gv6 - 1237649961920757813White dwarf candidate in front of the galaxy: SDSS J015259.39-164009.2
AGZ0004e77 - 1237676672314114109White dwarf PHL 1212
AGZ0004e77 - 1237676672314114127Posted
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The blue star in front of the galaxy is a white dwarf candidate. However in the zoomed out image there really is a white dwarf, the blue star at the top:
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PHL 1212
Posted
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by Budgieye moderator
17,000 more white dwarf stars waiting for you! They have been identified by searching for "round" "very blue" in SDSS. Well, not in words, but in shape and colour measurement parameters.
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by Budgieye moderator
I suppose that means that there have been 17,000 supernova in our part of the galaxy in the last 10 billion years. I would have expected more.
Posted
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by Budgieye moderator
Can you change the title to dwarfs? Dwarves are a race of short people found in Middle Earth, and is a name created by the writer Tolkien. If people are doing a search, dwarf or dwarf* should be the search term, and dwarves won't pull up any results.
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I will, Budgieye, times like these I wish English was my native language 😃
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I''ll only post them when I happen to come across them, this is supposed to be fun 😃. But for the time being I might concentrate on them. Any chance there might be a few that haven't been recognized as white dwarfs? It would be nice if a few more could be added to the list. Maybe an astronomer can observe the star and make a spectrum to see if it really is a white dwarf. Or are there more methods to see if a star is a white dwarf?
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The blue star is PG 1611+041 , a UV-emission source. White dwarf star?
AGZ0002c8l AGZ0002c8m - 1237662262181888320Blue star
AGZ0004edz - 1237676673924530295Blue star
AGZ0001scw - 1237653738263740654Blue star
AGZ0002lag - 1237665441522778303White dwarf candidate - SDSS J012601.52+332523.5
AGZ0004sui - 1237678806920462443Posted
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Blue star in front of a blue galaxy 😃
AGZ0004utk - 1237678846109941878Blue star
AGZ0003a8v - 1237668735217172554Blue star or object
AGZ0002x21 - 1237666434186346972Blue star
AGZ00025yx - 1237660958639195101Blue star
AGZ0004d1o - 1237673075282805529Posted
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Blue star
AGZ0001hjt - 1237650760243019907Posted
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by Budgieye moderator in response to Alpha Aurigae's comment.
The blue star is listed in NED as PofG which is Part of Galaxy, which is obviouslywrong. The spectrum sample (the red square) is taken between the nucleus and the blue star. The spectrum shows a large peak of hydrogen alpha, so the nucleus must be feeding. The blue star must must be outside the sample area, and it doesn't contribute very much to the spectrum.
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237650760243019908
http://skyserver.sdss.org/dr8/en/get/specById.asp?id=372730358375933952
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Thanks for checking Budgieye, let's hope we found a white dwarf 😃.
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Blue star - listed as Blue object on SIMBAD - PHL 3233
AGZ0005byp - 1237679433988243510Blue star
AGZ0003rk8 - 1237671938750154082Blue star
AGZ0002l6n - 1237665371722547265Blue star
AGZ00034ps - 1237668560736747651Blue star
AGZ00056o9 - 1237679035625832462Posted
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Blue star
AGZ0002lzu - 1237665583263318114Blue star
AGZ0003qxb - 1237671766926032973Blue star
AGZ0003tla - 1237671969862124151Blue star
AGZ0004sui - 1237678806920462488Blue star
AGZ0002uln -1237666274211856424Posted
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Blue star
AGZ0003mnx - 1237671255823941736White Dwarf Candidate - SDSS J181629.84+220650.1
AGZ0002p01 - 1237666209783743260Blue star
AGZ0002pc1 - 1237666210333852278Blue star
AGZ0001olc - 1237652942091124936Blue star
AGZ0004pml - 1237678624391037397Posted
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Blue star
AGZ00039ug - 1237668730383958159Blue star - if the colour isn't an artifact...
AGZ0002lc5 - 1237665530647085087Blue star
AGZ0004f07 -1237676677146411761Blue star
AGZ0002qpi - 1237666214079693311Blue star
AGZ0003nmr - 1237671260654862866Posted
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Blue star
AGZ0002nb8 - 1237666184029143147Blue star - colour might be an artifact - 2MASS J01310513+2057035
AGZ0005fhe - 1237679476942700559Blue star - also mentioned as blue star on NED
AGZ0005hjh - 1237679503782248514Blue star
AGZ00022vz - 1237659120950509967Blue star
AGZ0003qwo - 1237671765321187356Posted
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Blue star
AGZ00025i2 - 1237660751406891037Blue star
AGZ000273w - 1237661059571451616Blue star
AGZ0004bh5 - 1237676304023355854Blue star
AGZ0002co1 - 1237662474226237673Blue star
AGZ000576v - 1237679078584549588Posted
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Blue star
AGZ0002aos - 1237661125606572629Blue star
AGZ00064bj - 1237680508798108127Blue star
AGZ0004xfp - 1237678875632140592Blue star
AGZ0002igo - 1237663655342506096Blue star
AGZ0003k8r - 1237671068996272475Posted
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Blue star
AGZ00038eq - 1237668679922548866Blue star - PB 5073
AGZ0004jdw - 1237678597541199897Blue star
AGZ0005zfr - 1237680327869989277Blue star
AGZ00023xa - 1237659931608745265Blue star
AGZ0002x3o - 1237666434190278952Posted
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Blue star
AGZ0005jrg - 1237679586451196418Blue star
AGZ0002lqy - 1237665569840366595Blue star
AGZ0002784 - 1237661059574269440Blue star
AGZ0001kym - 1237652600097996962Blue star
AGZ00029x9 - 1237661115944272734Posted
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White Dwarf
AGZ0001j66 - 1237651538185814128Blue star
AGZ0003igg - 1237670957326139511Blue star
AGZ0001z2n - 1237656529465245715Blue star
AGZ000471k - 1237673757111157290Blue star
AGZ000438v - 1237673451636001109Posted
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Blue star
AGZ0001pni - 1237652946385371381Blue star
AGZ00058x5 - 1237679255207870596Blue star
AGZ00053d2m - 12376789067902485White dwarf
AGZ0001q0d - 1237652947991593107White dwarf
AGZ0005yaq - 1237680310162554905Posted
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Blue star
AGZ00027o6 - 1237661061183045699Blue star (colour might be an artifact)
AGZ000642h - 1237680505577996373Blue star (colour might be an artifact)
AGZ0004bnb - 1237676305104372488Blue star
AGZ0005m9k - 1237680073935552764Blue star
AGZ0003a42 - 1237668734678467340Posted
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Blue star
AGZ0001l8z - 1237652600641487000Blue star?/blue stars?/artifact?/colour artifact?/galaxy?
AGZ00044t6 1237673700739317862Blue star - colour might be an artifact
AGZ0004qtz - 1237678722628386986White Dwarf Candidate - FBS 1751+409
AGZ0001z26 - 1237656529464262722Blue star
AGZ0002yoc - 1237667206215565643Posted
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Blue star
AGZ0002gr1 1237663234988769787Blue star
AGZ0002wv5 - 1237666430971085012Blue star
AGZ00058u9 - 1237679255202299955Blue star
AGZ0003iv6 - 1237670960018620895Blue star
AGZ00024at - 1237659935365333077Posted
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Blue star
AGZ0001l3y 1237652600109137927Blue star (colour might be an artifact)
AGZ000286x - 1237661069234668206Blue star
AGZ0004qcg - 1237678661976195117Blue star
AGZ00027km - 1237661060648075818Blue star
AGZ0002coz - 1237662499465068603Posted
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Blue star
AGZ0002y3j - 1237666465336001160Blue star or something else?
AGZ00022x5 - 1237659131678949683Blue star next to a starburst galaxy...
AGZ0004iia - 1237678595938779335Blue star
AGZ00041za - 1237673327607873782Blue star
(Not entirely sure but it might be this one: GSC 02535-00757 )
AGZ00032so - 1237667259893678106Posted
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Blue Horizontal Branch star
AGZ0001lwx - 1237652629642936545Blue star
AGZ0002axb - 1237661386549691727Blue star
AGZ0005s0n - 1237680247340663341Blue star
AGZ00044d6 - 1237673474713845797Blue star
AGZ0001krl - 1237652599561978178Posted
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Blue star
AGZ0001t42 - 1237654599940309153Blue star
AGZ00034d6 -1237668348674441223Blue star
AGZ0005qf4 - 1237680242522521761Blue star
AGZ0002lx6 - 1237665571453206686Blue star
AGZ00014br - 1237645943445914077Posted
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Blue star or object
AGZ00041cz - 1237673284121919637Blue star
AGZ0003ktd - 1237671567209726033Blue star
AGZ00060na - 1237680332185076115Blue star
AGZ0001oea - 1237652938862168330Blue star
AGZ0002crp - 1237662505377333882Posted
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Blue star
AGZ0003pox - 1237671694450229690White Dwarf
AGZ0003pox - 1237671694450229933Blue star - spectrum on Skyserver Page - Horizontal Branch Star (SIMBAD)
AGZ0003pox - 1237671694450229905Blue star
AGZ0003pox - 1237671694450229953Blue star
AGZ0002cjy - 1237662335179817033Posted
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Blue star
AGZ0005bk4 - 1237679340567199791Blue star
AGZ0004rbz - 1237678777397477667Blue star
AGZ0003akc - 1237668737371342279Blue star
AGZ0003fb1 - 1237669768157397052Blue star
AGZ0001y6a - 1237656494035632219Posted
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Blue star
AGZ0001qjm -1237653008119496803Blue star
AGZ0001qjm - 1237653008119498218Blue star
AGZ0001qjm - 1237653008119496907Blue (?) star
AGZ0001y6a - 1237656494035632530Blue star
AGZ0003qwm - 1237671765321187356Posted
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Blue star
AGZ0003unr - 1237672003150677835Blue star
AGZ0003unr - 1237672003150677470Blue star
AGZ0003unr - 1237672003150675992Blue star
AGZ0003unr - 1237672003150678064Blue star
AGZ0003unr - 1237672003150676851Posted
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Blue star
AGZ00033zw - 1237668272455549420Blue star
AGZ0004i5d - 1237678583580524635Blue star
AGZ0005mv5 - 1237680092181758668Blue star
AGZ0002hwp - 1237663463145537636Blue star
AGZ0004ix6 - 1237678596482531355Posted
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Blue star
AGZ0002uln - 1237666274211856424Blue star
AGZ0005zda - 1237680327336788277Blue Horizontal Branch star
AGZ0002g0m 1237663232841744409Blue star
AGZ0002dy2 1237662979962307347Blue star
AGZ0002dy2 1237662979962307976Posted
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Blue star
AGZ0005ls3 1237680070174572855Blue star
AGZ0002mud 1237666183472021912Blue star
AGZ0004lsm 1237678602901586416Blue star
AGZ0002jxm 1237664286702699859Blue star
AGZ0004nle 1237678619037663417Posted
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Blue star
AGZ0002GPM 1237663234987459388Blue star
AGZ0004ew8 1237676676615701773Blue star
AGZ00033zo 1237668272444670203Blue star (colour might be an artifact)
AGZ0002kk0 1237664871900578010Blue star
AGZ0004aim 1237674655835160671Posted
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White dwarf WD 1817+788
Thanks to liometopum for sending this one to me 😃
AGZ0002h3f - 1237663230143365168Blue star
AGZ0003q4w 1237671752434843876Blue star
AGZ0005xm3 1237680306405179769Blue star
AGZ0003qrm 1237671764782612667Horizontal branch star
AGZ0005hiu 1237679503780675612Posted
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White Dwarf
AGZ0002ie5 1237663548505587846Blue star
AGZ0003g6t 1237670016195690509Blue star
AGZ00054q2 1237678919138803852Blue star
AGZ00029uw 1237661115405697503Blue star - UV-source
AGZ0003qhj 1237671763708346409Posted
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White Dwarf Candidate
AGZ000462o 1237673710399521037Blue star
AGZ0001o81 1237652936177942734Blue star
AGZ0005kig 1237679998233608208Blue star
AGZ0002rt9 1237666226421171511Blue star
AGZ0002pic 1237666210852110912Posted
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Blue star
AGZ0002x3p 1237666434190278952Blue star
AGZ00043k8 1237673452710265330Blue star
AGZ00016xr 1237648722278417380Blue star - ultravoilet source
AGZ0002ax9 1237661386549624985Blue horizontal branch star
AGZ0002vez 1237666276350427234Posted
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White Dwarf candidate
AGZ0001ozm 1237652943168864403White Dwarf WD 2257+138
AGZ0001ozm 1237652943168864402Blue star
AGZ00030ik 1237667227689549852Blue star - UV-source
AGZ00026a7 1237661055283102084Blue object
AGZ00051j8 1237678892818629165Posted
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White Dwarf Candidate
AGZ0001hn7 1237650795138777154Blue star
AGZ0002o2v 1237666185615835354Blue star
AGZ0004ay9 1237674895810757783White dwarf candidate
AGZ0004ay9 1237674895810757490Blue star
AGZ0004ay9 1237674895810693427Posted
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Blue star - UV Source
AGZ0002xar 1237666462649746126Blue star
AGZ0002l73 1237665373870161933Blue star - UV Source
AGZ0005vvh 1237680297272344635Blue star - UV Source
AGZ0005jzl 1237679996621095375Blue star - UV Source
AGZ0004ypx 1237678879959941217Posted
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Blue star - UV source
AGZ00053o1 1237678907327643750Blue object
AGZ00062eq 1237680477655990535Blue star
AGZ0002sev 1237666227496682650White Dwarf - PB 7489
AGZ0001lcv 1237652600649547829Blue straggler star - HE 2300-0854
AGZ0001lcv 1237652600649547840Posted
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Another blue straggler star - thanks to turelli 😃
AGZ00065c2 1237659330317320241Blue star
AGZ0002chc 1237662303518785878Blue star
AGZ0003s3g 1237671940347659129Blue star
AGZ0002i27 1237663525958190340Blue star
AGZ00037vu 1237668660063373036Posted
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Blue star
AGZ00039de 1237668708917903603Blue star
AGZ0003xr6 1237672456808633255Blue star
AGZ0003xr6 1237672456808631316Blue star
AGZ0003wq3 1237672132003889942Blue star
AGZ0003xjk 1237672156163670818Posted
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Blue star
AGZ00014i3 1237646586096844814Blue star
AGZ0003dbq 1237669698908127467Blue star
AGZ0002wmr 1237666429894853628Blue star Typ A0
AGZ0002cgj 1237662500540055596
Blue star
AGZ0004pt5 1237678660893016252Posted
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White dwarf candidate
AGZ0002uid 1237666274204909703Blue star
AGZ0002dai 1237662662685556757Blue star
AGZ0004xnv 1237678876707128335Blue star
AGZ0004xnv 1237678876707192860Blue star
AGZ0004xnv 1237678876707192873Posted
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Blue star
AGZ0004h4h 1237678542772371772Blue star
AGZ0002qh1 1237666213549048418Blue star
AGZ0003p9e 1237671685860622694Blue star
AGZ000561o 1237679008242073669Blue star
AGZ0001jdw 1237651697083285787Posted
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Blue star
AGZ0001vsj 1237655550747738394Blue star
AGZ0004xpt 1237678876713549867Blue star
AGZ0002jk5 1237664089673499106White Dwarf Candidate
AGZ0002ohz 1237666186176823522Blue star
AGZ0001hob 1237650795677220905Posted
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White dwarf star
AGZ0001hob 1237650795677221131Blue Star
AGZ00065pg 1237667253462564943Blue star
AGZ0002swt 1237666228572325890Blue star
AGZ0005wu3 1237680302102807225Blue star
AGZ0005q07 1237680241974378763Posted
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White dwarf candidate
AGZ0002fub 1237663231232311900Blue star - Type A0
AGZ000392t 1237668704614940887Blue star
AGZ00024ck 1237659935370641414Blue star - Type A0
AGZ00048hn 1237674284853297497Blue star
AGZ0002ndl 1237666184033927355Posted
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Possible quasar
AGZ0004mhq 1237678617954615338Blue star
AGZ0002ndl 1237680529744069009White dwarf
AGZ0002tom 1237666245208377290White dwarf
AGZ0005pg7 1237680240907518000Blue Star
AGZ00042q2 1237673430693118665Posted
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Blue star
AGZ00054u8 1237678919660273767Blue star
AGZ00022a9 1237658300592226982Blue star
AGZ0003kxc 1237671123217875437Blue star
AGZ0002ivk 1237663789568426082Blue star
AGZ0002ani 1237661122385150218Posted
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Blue star
AGZ0002ani 1237661122385150039Blue star
AGZ0002t9u 1237666229121124774Blue star
AGZ0002f8q 1237663229087776798Blue star
AGZ0002ysu 1237667206750142858Blue Star
AGZ0005atg 1237679323935932619Posted
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Horizontal Branch Star
AGZ0005qsg 1237680243062472724Blue star
AGZ0005ssf 1237680262916473103Blue star
AGZ0005ssf 1237680262916473104Blue star
AGZ00033sq 1237667783358939411Blue star
AGZ00033sw 1237667783374340181Posted
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Blue star
AGZ0002ib0 1237663547430732563Blue star
AGZ0003r7t 1237671773368615212Blue star
AGZ0001xzi 1237656243310493851Blue object
AGZ0005742 1237679078054625457Blue star
AGZ0001inj 1237651251529646114Posted
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Horizontal Branch star
AGZ0003oue - 1237671561306505357Blue star
AGZ0002xd2 1237666462654791695Blue star
AGZ0001jra 1237655468065751232Blue star
AGZ0004jbd 1237678597536219493Blue star
AGZ0003ebn 1237669762249851496Posted
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Blue star
AGZ0005cxb 1237679438810841197Blue star
AGZ0002zjg - 1237667223387504805Blue star
AGZ0004wvv 1237678859554717755Blue star
AGZ0003unc 1237672003149826586Blue star
AGZ0003k8n 1237671068995749810Posted
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White dwarf star
AGZ0004661 1237673710937243782White dwarf candidate
AGZ0002yk1 - 1237667205679022511Quasar
AGZ0001li3 1237652616203534504Blue star
AGZ0005nti 1237680117954904212Blue star
AGZ0003swo 1237671956455883197Posted
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Blue star
AGZ00037e6 1237668657908810119Blue star
AGZ0002248 1237658205046571134Blue star
AGZ00061i8 1237680443296319374Blue star
AGZ0002a01 1237661117553968640Blue star
AGZ0002d7q 1237662662680576217Posted
-
Blue star
AGZ0001whf 1237655748306993215Blue star
AGZ00044uy 1237673700744429766Blue star
AGZ0003sdy 1237671940889968956Blue star
AGZ0004i5c 1237678583580524635Blue star
AGZ0002s8s 1237666226966234101Posted
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Blue star
AGZ00063je 1237680502897639588Blue star
AGZ00051hi 1237678892814631310Blue object
AGZ0002zp8 1237667223397269790Blue star
AGZ0003gyu 1237670446759940324Blue star - T2
AGZ0002ttl 1237666245747344617Posted
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White Dwarf
AGZ0005ln5 1237680069634424900White Dwarf
AGZ0003a0p 1237668732530329960Blue star
AGZ0002qxj 1237666214612959505Blue star
AGZ0005ntz 1237680117956214849Blue star
AGZ0002ikc 1237663786881122723Posted
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Blue star
AGZ00052u0 1237678905721880598Blue star
AGZ00041e5 1237673284125196631Blue star
AGZ00021e0 1237657878077636900Blue star
AGZ0002vsl 1237666301580935965Blue star
AGZ0002vsl 1237666301580936336Posted
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Blue straggler star
AGZ00030x7 1237667228764668172Quasar candidate
AGZ0003qyq 1237671768002789511Blue star
AGZ0002gto 1237663235516465497Blue star
AGZ0003s47 1237671940348708232Blue star
AGZ0003bru 1237669518515503292Posted
-
Blue star
AGZ0005002 1237678881554497547Blue star
AGZ00036j8 1237668648779120909Blue star
AGZ0004pw1 1237678660904091650Blue star
AGZ00023zr 1237659932144763105Blue star
AGZ0005o8n 1237680121715163227Posted
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White Dwarf
AGZ0003nen 1237671257982828803Blue star
AGZ0001hfw 1237650370476900378Blue star
AGZ0001hfw 1237650370476900384Blue star
AGZ0005ocq 1237680122250526869Blue star (colour might be an artifact)
AGZ0003wk8 1237672027314718364Posted
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White dwarf candidate
AGZ0003ujp 1237671992959631478Blue star
AGZ00037iq 1237668658450465189Blue star
AGZ00037iq 1237668658450465202Blue star
AGZ00037iq 1237668658450465569Blue star
AGZ0001zxd 1237656564352811288Posted
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Blue star
AGZ0002thy 1237666244134963568Blue star
AGZ0005y5y 1237680309625684160Posted
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I often see bright starlike objects in galaxies, like the bright white points in this spiral galaxy. I usually see them in spiral galaxies. What are they?
Posted
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by Budgieye moderator
These are white objects in our own galaxy, getting in the way. You can see more of them elsewhere in the picture.
Posted