2025-02-20, 06:57 PM
[quote pid="15374" dateline="1740065260"]
So, is there a reason why is NGC6882 is still showing up in a location that contradicts all these other sources?
[/quote]
Hello,
I appreciate all of the additional information! But I don't think I understand your question. Obviously its an error in the database. There are millions of objects in the database. The NGC catalog is just one small catalog. It has been rife with errors for many decades (which is why the NGC/IC project was undertaken) and those errors have propagated to other catalogs. Even the members of the NGC/IC project don't always agree which object is which, so it takes some digging to get right.
The data (magnitudes, sizes, etc) in SkyTools is drawn from many different catalogs (not just a version of the NGC) and when the original combination of data took place, an algorithm had to decide which object was which when multiple catalogs disagreed. Sometimes it made a decision that later investigation needs to reverse.
The SkyTools databases are an interconnected web of designation databases, and those same designations are also stored with each object. As a result, errors in the Database take time to fix. Its not a matter of simply editing a text file. I have many other things to do, so I make a list of fixes and then update the similar ones at the same time. I am also working an an update with many other, more important, fixes. One NGC number doesn't seem like it should be my main priority. I will fix this eventually.
So, is there a reason why is NGC6882 is still showing up in a location that contradicts all these other sources?
[/quote]
Hello,
I appreciate all of the additional information! But I don't think I understand your question. Obviously its an error in the database. There are millions of objects in the database. The NGC catalog is just one small catalog. It has been rife with errors for many decades (which is why the NGC/IC project was undertaken) and those errors have propagated to other catalogs. Even the members of the NGC/IC project don't always agree which object is which, so it takes some digging to get right.
The data (magnitudes, sizes, etc) in SkyTools is drawn from many different catalogs (not just a version of the NGC) and when the original combination of data took place, an algorithm had to decide which object was which when multiple catalogs disagreed. Sometimes it made a decision that later investigation needs to reverse.
The SkyTools databases are an interconnected web of designation databases, and those same designations are also stored with each object. As a result, errors in the Database take time to fix. Its not a matter of simply editing a text file. I have many other things to do, so I make a list of fixes and then update the similar ones at the same time. I am also working an an update with many other, more important, fixes. One NGC number doesn't seem like it should be my main priority. I will fix this eventually.
Clear skies,
Greg
Head Dude at Skyhound
Greg
Head Dude at Skyhound