Talk:Q636721
Latest comment: 10 years ago by Paperoastro in topic Correct identification of this object
Autodescription — NGC 1998 (Q636721)
description: galaxy
- Useful links:
- View it! – Images depicting the item on Commons
- Report on constraint conformation of “NGC 1998” claims and statements. Constraints report for items data
- See also
- This documentation is generated using
{{Item documentation}}.
Correct identification of this object edit
The correct identification of some NGC objects is difficult due to errors and misunderstandings of the original observers and of the astronomers that, during time, re-analyzed the data.
Use the information of different sources, NGC 1998 has different identifications. Following the prescription of NGC/IC project the correct identification of NGC 1998 is PGC 17434, but not NGC 1995!
| Source | Other NGC | PGC | Link | Notes |
|---|---|---|---|---|
| NGC/IC project in VizieR (Q1662358) | --- | PGC 17434 | [1] | right identification |
| NASA/IPAC Extragalactic Database (Q488563) | --- | PGC 17434 | [2] | right identification |
| Lyon-Meudon Extragalactic Database (Q6709611) | --- | PGC 17434 | [3] | right identification |
| SIMBAD (Q654724) | NGC 1995 | PGC 17434 | [4] | right identification, but wrong assignment to NGC 1995! |
- It would be prudent do not use SIMBAD (Q654724) database to recover catalog names of this object!