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EntityQ584553· pop 32· linked from 95 articles

سیگما هشتک

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Also known as Polaris Australis

star in the constellation Octans

Key facts

Constellation
Octans
Right ascension
21 08 46.86357
Declination
−88 ° 57 ′ 23.3983 ″
Spectral type
F0 IV
U b color index
+0.13
B v color index
+0.26
Variable type
δ Sct

via Wikipedia infobox

Wikidata facts

Constellation
Octans
Distance from Earth
90.086
Radius
4.2
Mass
2.7
Variable-star type
Delta Scuti variable
Image
Octans trapezoid.GIF
Show 14 more facts
spectral class
F0
catalog code
UBV M 23463
apparent magnitude
5.374763
parallax
11.1005
radial velocity
12.0
absolute magnitude
0.83
luminosity
39.8
stellar rotational velocity
145
declination component of proper motion
4.721
epoch
J2000.0
right ascension component of proper motion
26.323
age estimated by a dating method
912
right ascension
317.19526487582993
declination
-88.95649953627
Sources (2)

via Wikidata · CC0