Query by Generic Code Number
Generic Code
The generic part of the code number is the part that identify the
catalogue, the list or the star cluster. The rest of the code number
contains the star number in the given calalogue, list or cluster.
This technique may seem awkward, but it may be used to retrieve
data for any list to which a code number has been attributed.
For more information see the
code numbering system description.
Content
Star Clusters
NGC clusters: 02NNNN
- where 02 stands for the NGC catalogue and NNNN is the NGC number
- Example: 022287 is the generic code for NGC 2287
IC clusters: 03IIII
- where 03 stands for the IC catalogue and IIII is the IC number
- Example: 032391 is the generic code for IC 2391
Anon clusters
- The generic code for anon clusters starts with 04 or 05 depending on the
number of clusters in the list of each discoverer. 04 is used for list
smaller than 100 clusters and 05 for list larger.
- This table gives the
code attributed to each author.
- The generic code is then formed with the code for the author and the cluster
number.
- Examples
- 043516 stands for Trumpler 16
- 051228 stands for Collinder 228
Generic code of nearby clusters
| Cluster designation | Other name | Generic code |
|---|
| Hyades | Mel 25 | 052025 |
| Pleiades | Mel 22 | 052022 |
| Alpha Persei | Mel 20 | 052020 |
| Coma Berenices | Mel 111 | 052111 |
| Praesepe | M44 | 022632 |
| NGC 2682 | M67 | 022682 |
| NGC 1976 | Orion cluster | 090001 |
| NGC 884 | chi Persei | 020884 |
| NGC 869 | h Persei | 020869 |
| IC 2391 | omicron Vel | 032391 |
| IC 2602 | theta Car | 032602 |
| Blanco 1 | Zeta Scl | 040901 |
| Trumpler 16 | eta Car | 043516 |
Sequences around globular clusters
- NGC Clusters
- The generic code for calibrating photoelectric sequences around globular
clusters is 092 followed by the NGC number.
- Example : Sequence around NGC 1851 : 0921851
- IC Clusters
- The generic code for calibrating photoelectric sequences around globular
clusters is 093 followed by the IC number.
- Example : Sequence around IC 4499 : 0934499
Sequences around NGC galaxies
- NGC Galaxies
- The generic code for calibrating photoelectric sequences around NGC
clusters is 092 followed by the NGC number of the galaxy.
- Example : Sequence around NGC 1275 : 0921275
Selected Areas
The selection on the Selected Area numbers offers the possibility of retrieving
all stars observed in a given selected area.
The codes for the Selected Area are formed with a catalogue identifier and the
Selected Area number:
- Harvard SA : 070
- Bergedorf : 073
- Potsdam : 075
- McCormick zones : 078
Examples
Codes for SA 154
| Harvard Selected Area 154: | 0700154 |
| Bergedorfer SA 154 : | 0730154 |
| Potsdam SA 154 : | 0750154 |
Other links
epaunzen@physics.muni.cz
Last update: 27 June 1997