NGC 55, irregular galaxy in constellation Sulptor

Note. Color balance edited 16.09.

NGC 55, barred irregular galaxy in constellation Sculptor. Distance about 7 million light years.

Closeup

When I was stacking the Luminance channel of NGC55, I noticed two moving objects in a field.

I made animations of them to show the movement. It could be nice to know, what they are. When I'll find out,

I'll post the information here!

UPDATE

A friend in Finnish astronomical group, "Astronetti", found the information for objects by using the "Minor Planet Checker"  Here is the information for both objects:

Object designation         R.A.           Decl.         V       Offsets          Motion/hr   Orbit  Further observations?
 (20031) 1992 OO         00 14 06.8  -39 17 11  15.7   9.0W    5.4S    20-    35-   12o  None needed at this time.
 

  2005 UD530               00 13 51.8  -39 13 53  19.7  11.9W   2.1S    33-     0+    3o  Desirable between 2010 Sept.            

  15-Oct. 15.

Animated areas are marked in this single 600s luminance frame.

Information:

Location, Brisbane Australia

Date, 14.09.2010

Time Zone, UTC +10h

The animation has13 x 600s frames, taken between 10:25 and 13:31 UTC.

The whole field animated showing both moving objects. First object at Two a clock position and the second one at Eight a clock position.

Closeup animation of first object.

An animated closeup of the second object.

It's always fascinating to see something moving in a deep space! An other part of fun is trying to find out, what it might be.

Technical details:

16" RCOS ja Apogee U9000 camera. 

LRGB combo. An Australian remote telescope

13x600s for the Luminance and 3x600s / RGB-channel . Dark, Bias and Flat calibrated.

Raw data is shared by Petri Kehusmaa and J-P Metsavainio

Processing workflow:

Image acquisition, MaxiDL v4.xxx

Stacked and calibrated in CCDStack.

Deconvolution with a CCDSharp, 30 iterations.

Levels, curves and color combine in PS CS3.



A general note:

Seeing was really bad during the imaging sequence, FWHM varied between 8" -5,5"