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Naming problems in Siena SGA-2020 #86

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TriShotFlurry opened this issue Nov 26, 2024 · 4 comments
Open

Naming problems in Siena SGA-2020 #86

TriShotFlurry opened this issue Nov 26, 2024 · 4 comments

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@TriShotFlurry
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SIMBAD and LEDA are totally wrong on NGC4702; it should be identical to NGC4692. See www.ngcicproject.org.
https://www.legacysurvey.org/viewer/?ra=192.2486&dec=27.1777&layer=ls-dr9&zoom=14&ngc&sga

SiMBAD and LEDA are also wrong on IC0045, it should be the double star at 10.6501, 29.6549.
https://www.legacysurvey.org/viewer/?ra=10.6501&dec=29.6549&layer=ls-dr9&zoom=14&ngc&sga

@TriShotFlurry
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All databases are wrong on PGC 24397 (NOT = IC 511) IC 511 = NGC 2646
according to this page: https://cseligman.com/text/atlas/ic5.htm#ic511
https://www.legacysurvey.org/viewer?ra=130.2052&dec=73.4836&layer=ls-dr9&zoom=12

Also IC 346 shouldn't be listed because identification is disputed according to RHC, who identified it as NGC 1430: (which is a possibility)
https://www.legacysurvey.org/viewer?ra=55.4398&dec=-18.2894&layer=ls-dr9&zoom=12&sga

@TriShotFlurry
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TriShotFlurry commented Jan 17, 2025

Errata found from the following site: https://cseligman.com/updates.htm

The following current SGA identifiers should be stricken from the SGA-2020:

NGC7564
NGC7148
IC1096
NGC3932
NGC4604
IC1028
IC1045
IC0511

@TriShotFlurry
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IC 898, although a historical misidentification in the HyperLEDA catalogue is not this: RA Dec=203.542351 13.162945

This error, which all databases (except HyperLEDA) do not have updated designation entries, and therefore have pretty erroneous identifications with NGC objects, there are a few more.

@TriShotFlurry
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NGC 724 is probably PGC170023 with an RA error value misidentified as PGC007121 in RNGC.

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