Red Twins

by bluemagi

1237655126621094055 StarM4 Low Mass Star on left. On right High proper-motion Star. Don't really know what the distance is between them.
Also could someone please verify the distance on this Quasar:
1237667782302302621 Z:7.004 , nothing on Simbad and a Ref. on Ned nothing. Had 2 Quasars at Z:5.00 and anything over that was wrong.
Thanks, Magi

Posted July 29, 2017 5:08 AM

by Budgieye moderator

Stars actual size is smaller than the size of a pixel. Quite a fast moving star, proper motion -310 -47

http://simbad.u-strasbg.fr/simbad/sim-id?Ident=%404008478&Name=LSPM J1229%2B0556W&submit=submit

Here is information on calculating distance between them.

Forum: Friday 8th January, 2010. Two galaxies, the same size? by Budgieye http://www.galaxyzooforum.org/index.php?topic=277034.msg416504 #msg416504 measure the size and distance of two galaxies

enter image description here

http://skyserver.sdss.org/dr12/SkyserverWS/ImgCutout/getjpeg?TaskName=Skyserver.Explore.Image&ra=187.320778214312&dec=5.93832547511245&scale=0.2&width=200&height=200&opt=G

http://skyserver.sdss.org/dr12/en/tools/explore/summary.aspx?id=1237655126621094055

enter image description here

1237655126621094055 StarM4 Low Mass Star on left. On right High proper-motion Star. Don't really know what the distance is between them.

Posted July 29, 2017 12:00 PM

by Budgieye moderator

This looks like a red star. Red quasars are pure red and brighter. SDSS can't "see" further away than about z=6.3, because quasar light gets redshifted to infrared.

PAGE 2 Galaxy Redshift Chart https://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ0000ulp?page=2

enter image description here

The spectrum looks like a dim red star, with values scarcely above zero.

enter image description here

http://skyserver.sdss.org/dr12/en/tools/explore/summary.aspx?id=1237667782302302621

This is the spectrum of a red quasar

enter image description here

http://skyserver.sdss.org/dr10/en/tools/explore/summary.aspx?id=0x112d19ac809c0333&spec=0x0718988774006800&apid=

Also could someone please verify the distance on this Quasar: 1237667782302302621 Z:7.004 , nothing on Simbad and a Ref. on Ned nothing. Had 2 Quasars at Z:5.00 and anything over that was wrong.

Posted July 29, 2017 12:20 PM

by bluemagi

Thanks,Budgieye for the information. Cheers, Magi

Posted July 29, 2017 6:23 PM