Theta Andromedae — Star in Andromeda
Observe
1Physical Properties
Magnitude
4.61
Spectral Type
A2V
Star Color
White
(B-V 0.06)
Distance
148 ly
2Position & Identifiers
RA
00h 17m 05.5s
Dec
+38° 40' 54.0"
Constellation
Andromeda
(And)
HR
63
HIP
1366
HD
1280
SAO
53777
Bayer
Theta
Flamsteed
24 And
Querying VizieR catalog...
3How easy to spot?
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Medium+ | Medium | 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
Aug – Oct
(peak: Sep)
5Survey Image
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Explore
6
Size Comparison
Querying VizieR for stellar data…
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
Possible Eggen group with V = +5k/s. Other members: HR 118, 378, 1046, 1706, 2375, 2572, 3131, 3894, 4564, 5482, 5843, | 6153, 6250, 6355, 6446, 7102, 7124, 7340, 8709.
15
Light Travel Time Machine
16
Relativistic Travel
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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