Observe
1Physical Properties
Magnitude
6.62
Range
6.57 - 6.90
Variable Type
Semi-Regular Variable (F-K Giant)
Spectral Type
F3Ia
supergiant
Star Color
Orange
(B-V 0.68)
2Position & Identifiers
RA
12h 56m 30.1s
Dec
-26° 27' 37.0"
Constellation
Hydra
(Hya)
HR
4912
HIP
63159
HD
112374
SAO
181244
Variable ID
LN Hya
Querying VizieR catalog...
3How easy to follow?
Magnitude
6.6 – 6.7 mag
Amplitude
0.1 mag
Period
43.96 d
Type
SRD
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | V. hard | Imp. | Imp. |
| 50 mm finder 50mm finder | Hard+ | Hard+ | Hard+ |
| 150 mm telescope 150mm scope | Hard+ | Hard+ | Hard+ |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
Out of reach for typical amateur telescopes, even at Bortle 3.
4Visibility
Set a location in User Settings to see visibility data.
Best season
Feb – Apr
(peak: Mar)
5Survey Image
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6Comparison Stars for LN Hya (6.6–6.7)
Nearby stable stars for estimating brightness (AAVSO)
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Explore
7
Size Comparison
Querying VizieR for stellar data…
8
Compare Stars
9
Spectral Classification
10
Hertzsprung-Russell Diagram
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11
Stellar Lifecycle
12
Blackbody Spectrum
13
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
14
Stellar Fusion
Discover
15Stellar Notes
Cep-like supergiant, 6.61 - 6.69V, amp. 0.32B, 43.96d preferred; 53.33 or 67.80d also possible.
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.
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