Beta Sextantis — Star in Sextans
Observe
1Physical Properties
Magnitude
5.09
Range
5.00 - 5.10
Variable Type
ACV:
Spectral Type
B6V
Star Color
Blue-white
(B-V -0.14)
2Position & Identifiers
RA
10h 30m 17.5s
Dec
-00° 38' 13.0"
Constellation
Sextans
(Sex)
HR
4119
HIP
51437
HD
90994
SAO
137608
Bayer
Beta
Flamsteed
30 Sex
Variable ID
Bet Sex
Querying VizieR catalog...
3How easy to spot?
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Medium | Hard+ | Hard+ |
| 50 mm finder 50mm finder | Easy | Easy | Easy |
| 150 mm telescope 150mm scope | Easy | Easy | Easy |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
4Visibility
Set a location in User Settings to see visibility data.
Best season
Jan – Mar
(peak: Feb)
5Survey Image
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Explore
6
Size Comparison
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7
Compare Stars
8
Spectral Classification
9
Hertzsprung-Russell Diagram
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10
Stellar Lifecycle
11
Blackbody Spectrum
12
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
13
Stellar Fusion
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14Stellar Notes
Slight variation with period or half-period of about 8d suspected.
Member of Pleiades group.
Nearby in the Sky
Other targets within a few degrees — pan your scope a little and keep exploring.
Visibility scores assume a 150 mm Newton at Bortle 4.
Explore Nightbase
Related knowledge, tools, and stories — no observation planning required.
Arthur Eddington
1919 eclipse expedition confirming general relativity; first theory of stellar interiors; the Eddington limit
Biography
The Life of Stars
From birth in a nebula to spectacular death — how stars are born, shine, swell, and die, and how to read the clues in their starlight.
Article
Sextans
Mythology, bright stars, and deep-sky highlights.
Constellation
