About: 93 Leonis

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93 Leonis (93 Leo) is a binary star in the constellation Leo. Its apparent magnitude is 4.522. Based on the system's parallax, 93 Leonis is located about 233 light-years (71 parsecs) away. 93 Leonis is a double-lined spectroscopic binary. Two components are known to exist, because their spectral lines shift periodically, due to the Doppler effect. The two stars are a G-type red giant and an A-type main-sequence star. They complete an orbit once every 71.69 days. The system is also known to be an RS Canum Venaticorum variable, due to its binarity. For that reason, it has been given the variable star designation DQ Leonis.

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  • 93 Leonis (93 Leo) is a binary star in the constellation Leo. Its apparent magnitude is 4.522. Based on the system's parallax, 93 Leonis is located about 233 light-years (71 parsecs) away. 93 Leonis is a double-lined spectroscopic binary. Two components are known to exist, because their spectral lines shift periodically, due to the Doppler effect. The two stars are a G-type red giant and an A-type main-sequence star. They complete an orbit once every 71.69 days. The system is also known to be an RS Canum Venaticorum variable, due to its binarity. For that reason, it has been given the variable star designation DQ Leonis. In Chinese astronomy, 93 Leonis is called 太子, Pinyin: Tàizǐ, meaning Crown Prince, because this star is marking itself and stand alone in Crown Prince asterism, Supreme Palace enclosure mansion (see : Chinese constellation). (en)
  • 93 Leonis, som är stjärnans Flamsteed-beteckning, är en dubbelstjärna, belägen i den norra delen av stjärnbilden Lejonet och har även variabelbeteckningen DQ Leonis. Den har en kombinerad skenbar magnitud av ca 4,52 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 14,0 mas, beräknas den befinna sig på ett avstånd på ca 233 ljusår (ca 71 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på ca 0,8 km/s. (sv)
  • 獅子座93,又名BD+21 2358,HD 102509、SAO 81998、HR 4527,是獅子座的一颗恒星,视星等为4.53,位于銀經235.01,銀緯73.93,其B1900.0坐标为赤經11h 42m 49.6s,赤緯+20° 73.93′ 29″。 (zh)
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  • 4.522000 (xsd:double)
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  • +0.9 / +0.2 (en)
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  • G5III + A7V (en)
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  • 93 (xsd:integer)
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  • 0 (xsd:integer)
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  • 0.230000 (xsd:double)
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  • 14.020000 (xsd:double)
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  • 0 (xsd:integer)
dbp:periastron
  • JD 2447642.6 ± 0.2 (en)
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  • 6194015.999999999
dbp:propMoDec
  • −4.34 (en)
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  • −145.49 (en)
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  • 93 Leonis, som är stjärnans Flamsteed-beteckning, är en dubbelstjärna, belägen i den norra delen av stjärnbilden Lejonet och har även variabelbeteckningen DQ Leonis. Den har en kombinerad skenbar magnitud av ca 4,52 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 14,0 mas, beräknas den befinna sig på ett avstånd på ca 233 ljusår (ca 71 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på ca 0,8 km/s. (sv)
  • 獅子座93,又名BD+21 2358,HD 102509、SAO 81998、HR 4527,是獅子座的一颗恒星,视星等为4.53,位于銀經235.01,銀緯73.93,其B1900.0坐标为赤經11h 42m 49.6s,赤緯+20° 73.93′ 29″。 (zh)
  • 93 Leonis (93 Leo) is a binary star in the constellation Leo. Its apparent magnitude is 4.522. Based on the system's parallax, 93 Leonis is located about 233 light-years (71 parsecs) away. 93 Leonis is a double-lined spectroscopic binary. Two components are known to exist, because their spectral lines shift periodically, due to the Doppler effect. The two stars are a G-type red giant and an A-type main-sequence star. They complete an orbit once every 71.69 days. The system is also known to be an RS Canum Venaticorum variable, due to its binarity. For that reason, it has been given the variable star designation DQ Leonis. (en)
rdfs:label
  • 93 Leonis (en)
  • 93 Leonis (sv)
  • 太子 (太微垣) (zh)
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  • 93 Leonis (en)
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