Iota Virginis
From Infogalactic: the planetary knowledge core
 Location of ι Virginis. |
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| Observation data Epoch J2000.0 Equinox J2000.0 |
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|---|---|
| Constellation | Virgo |
| Right ascension | 14h 16m 00.9s |
| Declination | −6° 00′ 02″ |
| Apparent magnitude (V) | +4.07[1] |
| Absolute magnitude (V) | +2.44[2] |
| Distance | 69.8 ± 1.3 ly (21.4 ± 0.4 pc) |
| Spectral type | F6 III[citation needed] |
| Other designations | |
Iota Virginis (ι Vir, ι Virginis) is a star in the constellation Virgo. It has the traditional name Syrma.[3]
Syrma is a yellow star of apparent magnitude 4.08 and spectral class F6 III about 70 light years from Earth. This star has 1.52 times the mass of the Sun,[4] with a projected rotational velocity of 14.8 km s−1.[2] It is radiating 8.6 times the luminosity of the Sun from its outer atmosphere at an effective temperature of 6,282 K.[1] The radius is about 2.5 times that of the Sun.[5]
In culture
- The name Syrma is from the Arabic (سرما (تطريز sirmā "train" (of a garment).
- In China, 亢宿 (Kàng Xiù), meaning Neck, refers to an asterism consisting of this star, κ Virginis, κ Virginis and λ Virginis.[6] Consequently, ι Virginis itself is known as 亢宿二 (Kàngsuèr, English: the Second Star of Neck.)
References
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- ↑ (Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 6 月 28 日
