螣蛇十九
Sign in to saveAlso known as λ Andromedae, λ And, HR 8961, HIP 116584, HIC 116584, 16 And, 16 Andromedae, lam And
star in the constellation Andromeda
Wikidata facts
- Constellation
- Andromeda
- Distance from Earth
- 25.9245
- Diameter
- 9140000
- Radius
- 7
- Mass
- 1
- Variable-star type
- RS Canum Venaticorum variable
- Image
- Lambda Andromedae.jpg
Show 17 more facts
- spectral class
- G8IIISB,V
- catalog code
- WISEA J233734.02+462724.8
- radial velocity
- 7.8
- stellar rotational velocity
- 7.8
- apparent magnitude
- 3.404353
- effective temperature
- 4693
- luminosity
- 26.255
- parallax
- 38.5736
- absolute magnitude
- 1.753
- metallicity
- -0.48
- epoch
- J2000.0
- surface gravity
- 200
- right ascension component of proper motion
- 159.606
- declination component of proper motion
- -421.822
- right ascension
- 354.39101158368
- declination
- 46.45815131142
- name
- Udkadua
Sources (2)
via Wikidata · CC0
Article · 中文
螣蛇十九 (λ And / 仙女座λ)是仙女座的一个双星系统，距离地球约84.2光年。 螣蛇十九为分光双星，绕行周期为20.52天。它的光谱类型为G型的黄巨星，平均视星等为+3.81。该双星系统也是猎犬座RS变星，亮度变化以54.2天的周期变化于+3.69到+3.97之间。
Abstract from DBpedia / Wikipedia · CC BY-SA