Catalog Numbers . Just Curious

[NedS]

I see in most exoplanet transit finder programs RA and Dec. are identifiers.
Why aren't Catalog numbers used?

[karenacollins]

I'm not sure about other programs, but as for AIJ, there would be a massive amount of data to carry around with the program. The TESS Input Catalog (TICv8) would be the most complete catalog, and it is huge. It contains nearly 2 billion sources.

On 5/5/2020 9:21 AM, NedS [via AstroImageJ] wrote:

I see in most exoplanet transit finder programs RA and Dec. are identifiers.
Why aren't Catalog numbers used?

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