Glossary of New Variable Star Catalog
Star
The name of a variable star.
It is named MisV after a variable star of the MISAO Project, with sequential number from 1 in order of discoveries.
R.A. Decl.
The position of a variable star (J2000.0).
The mean value of the position measured by the PIXY system is recorded.
In some cases, the position in star catalogs such as GSC or USNO-A1.0 is recorded.
Mag Range (Max Min)
If there are only a few observations and the light curve is uncertain, the maximum and minimum magnitude measured so far are recorded.
System
The magnitude system of the recorded magnitude range.
Type
Even if there are only a few observations and the light curve is uncertain, the type of a variable star is determined based on the following Criteria.
| Type | Criterion |
|---|
| M?/SR? | There are three observations when the magnitude difference from the others is greater than 0.3 mag.
2MASS J-Ks color is greater than 1.0 mag. |
| M:/SR: | There are four or more observations when the magnitude difference from the others is greater than 0.3 mag.
There are three observations when the magnitude difference from the others is greater than 0.3 mag, and 2MASS J-Ks color is greater than 1.0 mag. |
| M/SR | Twice or more maximum or minimum peaks are observed. |
| E: | Only once short-period fading is observed. |
| E | Twice or more short-period fading are observed. |
| S? | 2MASS J-Ks color is smaller than 1.0. |
| S | Some brightening or fading phases in short time are observed. |
| L | Twice or more maximum or minimum peaks are observed. Period is irregular. |
| ? | Others. Only few observations. |
- If the range is over 2.0-2.5 mag, classified as M. Otherwise SR.
- If spectrum is M, C or S, classified as a red variable star.
Period
The unit is day.
Epoch
In Julian day.
Discovery Date (Discovery)
It is the date to report the discovery to the VSNET mailing list.
Discoverers
The discoverers settled by the rule of the MISAO Project are noted.
For more details, please read Rules on the Discoverers.
GCVS Designation
The permanent variable star name assigned when registered to the GCVS (General Catalogue of Variable Stars).
The designation is recorded only when the it is assigned based on the MISAO Project discovery.
ID
The names of identified stars are recorded.
These identifications are researched by Taichi Kato (Kyoto University), John Greaves (the United Kingdom), and Seiichi Yoshida.
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