Explore the Archive
|Object by Name:|
|Single Location/Object:||Radius (arc sec):|
|Location/Object List:||Radius (arc sec):|
Accepted Identifiers and Catalogs
The Exoplanet Archive maintains its own list of cross-identifications for every star in the Exoplanet Archive database. To search on a single star or planet, enter the star name in the "Object by Name" box. If the star/planet name is recognized by the Exoplanet Archive, you will be taken directly to the Exoplanet Archive Overview page for that object. To search around an object or location use the "Single Location/Object" box. In this case, the service will check both the Exoplanet Archive database and the SIMBAD database to match the object name. For more details, see the Inventory Service User Guide.
If you enter the name of a star of a multiple system, the component letters are case-sensitive. For example, the system 30 Ari B is not treated the same as 30 Ari b.
When entering a planet name, you must include a space between the star name and the planet letter. Planet letters are also case-sensitive.
For the prefixes mu/MU and nu/NU, the case does matter: mu/nu = Greek letter-named star in constellation, and MU/NU = variable star
The following table lists the recommended identifiers to use when looking up information on a single object in the Exoplanet Archive.
|Catalog||How to pose your query to the Exoplanet Archive||Examples|
|Kepler Object of Interest (KOI)||KOI NNNNN.NN||KOI 100.01|
|Kepler Input Catalog (KIC)||KIC NNNNNNN||KIC 6922244|
Note: Entering K2 with no number resolves to KOI-2.
|Luyten Half-Second (LHS) Catalog †||LHS NNNN[a]||LHS 2201|
|The Henry Draper Catalog||HD NNNNNN [A]||HD 142
|The Hipparcos Catalog||HIP NNNNNN [A], or
HIC NNNNNN [A]
|The Gliese-Jahreiss Compilation||GJ NNN [A], or
GJ NNN.N [A], or
GL NNN [A], or
GL NNN.N [A]
|The Bayer-Flamsteed||ggg CON [A]||tau Boo|
|Common Name||Use the name itself||Fomalhaut
|IRAS||IRAS HHMMmsDDMM [A]||IRAS 08358+6430|
|The Bright Star Catalog||HR NNNN [A]||HR 8799|
|The Durchmusterung Catalogs (BD,CD,CPD, SD).
Please see note below.
|BDsNN NNNN [A], or
CD-NN NNNNN [A], or
CPD-NN NNNNN [A], or
SD-NN NNNNN [A]
|The 2MASS Catalog||2MASS JHHMMSSSSsDDMMSSS [A]||2MASS J23072869+2108033|
|The WISE Final Release Catalog||WISE JHHMMSS.ss+DDMMSS.s [A]||WISE J185154.96+404703.8|
|The Washington Double Star Catalog||WDS HHMMmsDDMM [A]||WDS J02370+2439B|
|The Smithsonian Astrophysical Observatory Catalog||SAO NNNNNN [A]||SAO 91022|
|Taurus Auriga Perseus (TAP) Catalog||TAP NN||TAP 26|
|The Tycho Catalog||TYC NNNN-NNNNN-N [A]||TYC 1718-02350-1|
|Trans-Atlantic Exoplanet Survey||TrES-NN||TrES-03|
|Optical Gravitational Lensing Experiment (Transit Events)||OGLE-TR-NNN||OGLE-TR-111|
|Optical Gravitational Lensing Experiment (Bulge)||OGLE YYYY-BLG-NNNL||OGLE 2005-BLG-071L|
|Microlensing Observations in Astrophysics||MOA YYYY-BLG-NNNL||MOA 2003-BLG-053L|
|Convection, Rotation, and Planetary Transits - Exoplanet||COROT-EXO-NN||COROT-EXO-01|
|Hungarian Automated Telescope - Planet||HAT-P-NN||HAT-P-3|
|Sagittarius Window Eclipsing Extrasolar Planet Search||SWEEPS-NN||SWEEPS-11|
|Wide Angle Search for Planets (WASP)||WASP-NN||WASP-2|
|SuperWASP||1SWASP JHHMMSS.SSsDDMMSS.S||1SWASP J002040.07+315923.7|
or PSR JHHMMsDDMM
or PSR J1719-1438 b
† In the LHS Catalog, note that some stellar entries are designated by a small lower-case letter (e.g. LHS 5358b, which represents a star, not a planet). To query for a planet in such a system, use LHS NNNNa b.
In the instructions above:
- N = an integer digit (0-9)
- HH = an integer number of hours (00-23)
- MM = an integer number of minutes (00-59)
- m = fraction of a minute (0-9); e.g., MMm = 217 corresponds to 21.7 minutes
- SSSS or SSS = seconds plus fraction of second (0000-5999 or 000-599); e.g., SSSS = 2248 corresponds to 22.48 seconds
- DD = integer number of degrees (00-89)
- YYYY = integer number of years (2000-2099)
- A = a letter of the (English) alphabet (A-Z or a-z)
- ggg = The full Greek letter (e.g., alpha, beta) or the 3 English letter abbreviation of Greek letters (e.g., alf, bet). For the Greek letters mu (μ) and nu (ν), please repeat the last character (muu, nuu) to enforce a three-character abbreviation.
- s = "+" or "-" sign
- CON = Three-letter abbreviation of constellation name (e.g., TAU, AND). See our complete list of constellation abbreviations here.
All other letters are entered as is. Note also that:
- Italicized = an instruction
- Anything written in [square brackets] may or may not be part of a query.
- Leading zeros (0s) may be omitted
- The Exoplanet Archive is case-sensitive only on the component and planet letters
Regarding Durchmusterung catalogs: The Exoplanet Archive uses the same designations as published in the original Durchmusterung catalogs. That is, the identifiers BD, CD, CPD, SD are not interchangeable. In the same spirit, the Exoplanet Archive also does not recognize the generic Durchmusterung (DM) identifier.
Regarding SIMBAD: This search function uses SIMBAD to find coordinates for object names that are not currently in the Exoplanet Archive.