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How to search the catalog
- Introduction
- GCVS NAME/OTHER NAME
- COORDINATES
- PROPER MOTION
- GALACTIC LATITUDE (b)
- REFERENCES
- TYPE
- MAGNITUDE RANGE
- YEAR OF OUTBURST
- PERIOD
- SPACE-BASED OBSERVATIONS
- NOTES
- Introduction
- All the fields in the catalog can be searched to identify objects,
either individually or in combination. Instructions for searching
each parameter are given below.
For text searches, all fields are case insensitive except for the type field, since there is a meaningful difference between ug (type confirmed in the literature) and UG (type not confirmed). Also, wildcards can be used (note that the wildcard symbol is a percent sign "%"). In most cases, you should surround your search parameter with wildcards. For example, searching on "Her" will give only those objects in Hercules with no GCVS designation. If you search on "%Her", you will get all objects in Hercules except those with the pseudo-GCVS designations (e.g. Her1) used in the previous editions. If you search on "%her%", you will get all objects in Hercules.
- GCVS NAME/OTHER NAME
- These are character fields which should be
searched with case-insenstive text strings; only one string at a time
may be used. Wildcards are permitted.
Example: GCVS Name |%Aql%| Other Name |%NSV%|
- COORDINATES
- These are numeric fields which can be searched by
entering the range of RAs and Decs desired, or by specifying a
position and search radius. Note that > and < usage is not supported,
and the "to" Dec must be south of the "from" Dec.
Example: RA (2000) |22:32:22.51| OR RA (2000) |22:32:22.51| to |23:00:25.51| Dec (2000) |-23:00:25.5| Dec (2000) |-30:22:56.4| Radius | 00:01:30 | degrees to |-40:10:20.2|
- PROPER MOTION
- The proper motion for the object in arcseconds/yr (RA and
Dec), along with the associate errors. The epoch
for the coordinates is also given.
- GALACTIC LATITUDE
- This is a numeric field which can be seached by
entering a value; note that < and > are supported.
Example: Galactic Latitude |>-27|
- REFERENCES
- These are character fields which should be searched with
case-insenstive text strings; only one string at a time may be used.
Wildcards are permitted. Note that for references with a ":" (description
or glass-plate tracing), you must use the "%" in your search.
Examples: Coordinate reference |1994-10| Chart reference |1994-%| Type reference |%:|
Note that, when on the individual object screen, clicking on the reference code will give you the complete reference.
- TYPE
- This is a character field which should be searched with
case-senstive text strings; only one string at a time may be used.
Wildcards are permitted. Click on Type to get a listing of all valid
types.
Example: Type |%na%|
- MAGNITUDE RANGE
- These are numeric fields which can be seached by
entering a value; note that < and > are supported. For this search,
note that ">" means BRIGHTER and "<" means FAINTER.
Example: Magnitude min |>17.9| Magnitude max |<15.2|
- YEAR OF OUTBURST
- This is a numeric field which can be
seached by entering a value; note that < and > are supported.
Example: Outburst year |>1924|
- PERIOD
- This is a numeric field which can be
seached by entering a value; note that < and > are supported.
Example: Period |<0.53| days
- SPACE-BASED OBSERVATIONS
- These are character fields which should be
searched by clicking in the appropriate box for each observatory
desired.
Example: | |IUE |X|HST | |ARIEL | |HEAO-1 | |HEAO-2 | |EXOSAT | |ROSAT |X|GINGA | |ASCA | |EUVE
- NOTES
- This is a character field which should be searched with
case-senstive text strings; only one string at a time may be used.
Wildcards are permitted.
Example: Notes |%quasar%|