Author Topic: Strange astronomical things...  (Read 13050 times)

AlexandredOr

  • Hero Member
  • *****
  • Posts: 25423
    • View Profile
Re: Strange astronomical things...
« Reply #30 on: January 18, 2012, 10:45:44 am »
It's obviously an error from NED.. No galaxy has a star appearance...
But it's strange to objective NED errors...  ;D

Baby star opening its eyes on the Universe.

ritacecilia

  • Hero Member
  • *****
  • Posts: 546
    • View Profile
Re: Strange astronomical things...
« Reply #31 on: January 19, 2012, 01:10:59 am »
Just came across ths one:

http://www.galaxyzoo.org/examine/AHZ40003w7
COMBO-17 43083                 03h32m52.2s -27d43m24s G
but that's all I could find
if it IS a galaxy... a huge quasar!

AlexandredOr

  • Hero Member
  • *****
  • Posts: 25423
    • View Profile
Re: Strange astronomical things...
« Reply #32 on: April 07, 2012, 02:34:21 pm »
1237680241455136790


This beautiful galaxy has 2 different reference numbers in the same catalogue : It's both IC 0048 and IC 1577 !!

Baby star opening its eyes on the Universe.

AlexandredOr

  • Hero Member
  • *****
  • Posts: 25423
    • View Profile
Re: Strange astronomical things...
« Reply #33 on: April 22, 2012, 11:39:31 am »
1237661120238453221


This splendid spiral has 2 numbers in the NGC catalogue : 1122 and 1123 !!

Baby star opening its eyes on the Universe.

AlexandredOr

  • Hero Member
  • *****
  • Posts: 25423
    • View Profile
Re: Strange astronomical things...
« Reply #34 on: April 22, 2012, 12:08:47 pm »
This spiral has a double entry in the IC catalogue : 0292 and 1887.... Strange, isnt'it ??
1237661081588138385

Baby star opening its eyes on the Universe.

JeanTate

  • OotD posters
  • Hero Member
  • *****
  • Posts: 2976
    • View Profile
Re: Strange astronomical things...
« Reply #35 on: April 29, 2012, 10:26:22 pm »


SDSS J224309.14+002345.6 (DR7 ObjId 587731186732367917) is the bright star.

Is the fuzzy stuff real nebulosity (an irregular galaxy, or a local galactic nebula)? or an artifact?

AlexandredOr

  • Hero Member
  • *****
  • Posts: 25423
    • View Profile
Re: Strange astronomical things...
« Reply #36 on: April 30, 2012, 10:35:23 am »


SDSS J224309.14+002345.6 (DR7 ObjId 587731186732367917) is the bright star.

Is the fuzzy stuff real nebulosity (an irregular galaxy, or a local galactic nebula)? or an artifact?

Would say real..

Baby star opening its eyes on the Universe.

JeanTate

  • OotD posters
  • Hero Member
  • *****
  • Posts: 2976
    • View Profile
Re: Strange astronomical things...
« Reply #37 on: April 30, 2012, 02:42:48 pm »


SDSS J224309.14+002345.6 (DR7 ObjId 587731186732367917) is the bright star.

Is the fuzzy stuff real nebulosity (an irregular galaxy, or a local galactic nebula)? or an artifact?

Would say real..
Thanks!  :)

NED has an object that is pretty much in the center of the nebulosity: APMUKS(BJ) B224036.36+000759.3.

"APMUKS(BJ)", is according to NED, the "Automated Plate Measurement United Kingdom Schmidt (B_J_)", and is described in a 1990 MNRAS paper, "The APM galaxy survey. I - APM measurements and star-galaxy separation" (ADS link). The critical part of the abstract would seem to be "The image surface brightness profiles are used to distinguish galaxies from stars and merged images."

There are no SDSS objects within this nebulosity, in DR7.

DR8 lists >20 objects in the fuzz, e.g. SDSS J224310.02+002344.7 (ObjId 1237660008929361934; image below), and SDSS J224310.01+002345.3. None have spectra.



It's in the Stripe 82 footprint (SDSS J224310.02+002343.9, ObjId 8658200273233379393); here's how it looks in the monochrome version (I don't - yet - know how to get an RGB one):



I wonder if it's one of the irregular's waveney is studying (I'll post it in the Irregulars thread later)? Of course, it may simply be some dust and/or gas that's been blown off by the bright blue star next door, or a remnant of that star's birth cloud ...

pluk

  • Hero Member
  • *****
  • Posts: 7161
  • serving coffee on aircraft causes turbulance
    • View Profile
Re: Strange astronomical things...
« Reply #38 on: May 01, 2012, 09:27:49 am »
1237680241455136790


This beautiful galaxy has 2 different reference numbers in the same catalogue : It's both IC 0048 and IC 1577 !!

Is that lensing I see?

edit:

Reposted to: "possible strong gravitational lenses"
« Last Edit: May 01, 2012, 09:56:52 am by pluk »
We tend to overestimate the effect of a technology in the short run and underestimate the effect in the long run. - Roy Amara, engineer, futurist (b. 1925)

AlexandredOr

  • Hero Member
  • *****
  • Posts: 25423
    • View Profile
Re: Strange astronomical things...
« Reply #39 on: May 15, 2012, 08:30:24 pm »
1237680310162554935


This beautiful spiral is in both catalogues NGC and IC (NGC 0444 and IC 1658).. It's strange considering that the IC catalogue is a completion of the NGC catalogue...  :-\

Baby star opening its eyes on the Universe.

AlexandredOr

  • Hero Member
  • *****
  • Posts: 25423
    • View Profile
Re: Strange astronomical things...
« Reply #40 on: June 02, 2012, 09:21:42 am »
1237671752434843778


Another strange error by Dreyer... This splendid spiral has 2 entries in the NGC : 3890 and 3939...

Baby star opening its eyes on the Universe.

AlexandredOr

  • Hero Member
  • *****
  • Posts: 25423
    • View Profile
Re: Strange astronomical things...
« Reply #41 on: June 20, 2012, 08:17:41 pm »
Another one : this beauty has 2 numbers in the NGC catalogue : 1174 and 1186

1237661122386723060

Baby star opening its eyes on the Universe.

AlexandredOr

  • Hero Member
  • *****
  • Posts: 25423
    • View Profile
Re: Strange astronomical things...
« Reply #42 on: July 10, 2012, 12:13:36 pm »
1237674284316426313 


This stunner is in the VV catalogue both 524 and 565. Strange, isn't it ??

Baby star opening its eyes on the Universe.

AlexandredOr

  • Hero Member
  • *****
  • Posts: 25423
    • View Profile
Re: Strange astronomical things...
« Reply #43 on: July 15, 2012, 04:42:40 pm »
Another anomaly in the NGC :
this splendid edge on spiral has 2 reference number : 4149 and 4154
1237657612877430834

Baby star opening its eyes on the Universe.

AlexandredOr

  • Hero Member
  • *****
  • Posts: 25423
    • View Profile
Re: Strange astronomical things...
« Reply #44 on: September 09, 2012, 05:04:33 pm »
Here is another galaxy with a reference number in both NGC and IC.....
1237668366927397237  NGC6132  IC4602

Baby star opening its eyes on the Universe.