LSBC?

• by metalmania

  This object has over 400 entries in NED, but no spectrum data in SDSS.
  Entry 415 says LSBC L1-099 - does that mean it's a low surface brightness galaxy?

  Posted October 29, 2015 10:43 PM

• by Budgieye moderator

  Not this target galaxy, but another one close by, a big dim blue off the image to the bottom right. This is the Low Surface Brightness Galaxy.

  

  http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?id=1237651753460171006

  This is an unusual and confusing part of NED because this galaxy is part of another deep sky survey, COSMOS, as well as being part of the Skyserver survey..There are many dim object around that appear in NED, but may not appear in SkyServer. There will be a better image of the area somewhere, maybe a Hubble image, but these databases are user unfriendly, and you have to know what you are doing. http://cosmos.astro.caltech.edu/

  Only row 1 in NED is about this target object, and that has only 6 references. The others are objects around it, see the separation arcminute column. The arcminute column should be 0.000 to 0.003, if it is more than that, your should consider that NED is centered on another object.

  I am not sure which NED object your Low Surface Brightness Galaxy is. Oh I see, it is 431 on my list. http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?search_type=Near+Position+Search&in_csys=Equatorial&in_equinox=J2000.0&obj_sort=Distance+to+search+center&lon=149.63146359d&lat=1.70761748d&radius=1.1

  The low surface brightness galaxy is 1.03 arcminutes , or 61.003 arcseconds away from the target galaxy.

  COSMOS will have images and a spectrum for all the hundreds of little red dim blobby things in the image.

  LSB galaxy is 1.03 arcmin away from target galaxy (1 arcmin=60arcsec)

  For some more information on LSB galaxies, see

  1.9 Irregular galaxies and clumpy galaxies, low surface brightness LSB http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=1&comment_id=53d8b7c00d43f776b000107a

  Posted October 30, 2015 5:54 AM

• by metalmania

  Ah, ok. I understand now - thanks for the detailed answer.

  Posted October 30, 2015 8:53 AM

• by Budgieye moderator

  You're welcome. Happy galaxy hunting 😃

  Posted October 30, 2015 10:34 PM