Alright! So after a lot of research and help from my friends, a match was finally found on the Galaxy object that I was researching as potentially uncatalogued! While that is mildly disappointing, it’s all good and the entire research process was fun and interesting! I’m definitely going to keep looking for unidentified objects in my images and going through this process will make it an even smoother process going forward! So thanks ‪@Naztronomy‬ and ‪@DeepSpaceAstro‬ for your research assistance!

Final Research Summary:

Catalogs Searched (No Match Found): (Automated = queried via API, script, or online tool UI; Manual = direct coordinate-based inspection)

• SIMBAD (Automated)
• CDS Portal (Cone and Table Queries)(Automated)
• SDSS Navigate Tool (Automated)
• Pan-STARRS (Manual via web cutout search)
• NASA Sky Server Survey (Manual image inspection)
• Stellarium (Manual sky rendering)
• 2MASS (Automated file search)
• Gaia DR3 (local file) (Manual / extracted via PixInsight photometry)
• SDSS DR12 (archived CSV)
• (Automated bulk data query)
• VizieR Image Archive (Automated cutout search)
• VizieR Spectral Archive (Automated cone search)

Summary

After an extensive multi-catalog search, Candidate Object A was ultimately identified in the SDSS database via the SkyServer interface. The object appears as a GALAXY with the following attributes:

• SDSS ObjID: 1237662307261087876
• RA/Dec: 209.076982164, +40.375554166
• Classification: GALAXY

This match was not returned in prior automated queries via the SDSS Navigate Tool, SIMBAD, or CDS Portal, and was instead discovered through a direct coordinate-based lookup using SkyServer’s advanced object search tools. Its late discovery reinforces the challenges of comprehensive catalog cross-referencing and highlights the importance of manual follow-up even when automated searches return null results.

Next Time!!

Cheers!
Doug