HAT-P-21 b

Summary

HAT-P-21 b is an exoplanet^[1].

Key Facts

• HAT-P-21 b's image is recorded as Exoplanet Comparison HAT-P-21 b.png^[2].
• HAT-P-21 b's instance of is recorded as exoplanet^[3].
• HAT-P-21 b's constellation is recorded as Ursa Major^[4].
• HAT-P-21 b's Commons category is recorded as HAT-P-21 b^[5].
• HAT-P-21 b's parent astronomical body is recorded as HAT-P-21^[6].
• HAT-P-21 b's catalog code is recorded as TOI-1800.01^[7].
• HAT-P-21 b's catalog code is recorded as TIC 17993892b^[8].
• HAT-P-21 b's time of discovery or invention is recorded as +2010-00-00T00:00:00Z^[9].
• HAT-P-21 b's time of discovery or invention is recorded as +2011-12-00T00:00:00Z^[10].
• HAT-P-21 b's discovery method is recorded as transit method^[11].
• HAT-P-21 b's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.228'}^[12].
• HAT-P-21 b's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+87.2'}^[13].
• HAT-P-21 b's mass is recorded as {'unit': 'http://www.wikidata.org/entity/Q651336', 'amount': '+3.97'}^[14].
• HAT-P-21 b's radius is recorded as {'unit': 'http://www.wikidata.org/entity/Q3421309', 'amount': '+1.024'}^[15].
• HAT-P-21 b's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+4.12448852'}^[16].
• HAT-P-21 b's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+3.5781'}^[17].
• HAT-P-21 b's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+0.0495'}^[18].
• HAT-P-21 b's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+309'}^[19].
• HAT-P-21 b's SIMBAD ID is recorded as HAT-P-21b^[20].
• HAT-P-21 b's Wolfram Language entity code is recorded as Entity["Exoplanet", "HATP21b"]^[21].
• HAT-P-21 b's Extrasolar Planets Encyclopaedia exoplanet ID is recorded as hat_p_21_b--735^[22].
• HAT-P-21 b's NASA Exoplanet Archive ID is recorded as HAT-P-21 b^[23].
• HAT-P-21 b's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+171.27494097413583'}^[24].
• HAT-P-21 b's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+41.02796365825029'}^[25].
• HAT-P-21 b's epoch is recorded as J2000.0^[26].

Body

Designation and Status

HAT-P-21 b's instance of is recorded as exoplanet^[3].

History and Context

Catalog codes include TOI-1800.01^[7] and TIC 17993892b^[8].