HIP 109102 — Star in Lacerta
Observe
1Physical Properties
Magnitude
5.14
Spectral Type
K5III
giant
Star Color
Red
(B-V 1.57)
Distance
544 ly
2Position & Identifiers
RA
22h 06m 02.0s
Dec
+45° 00' 52.0"
Constellation
Lacerta
(Lac)
HR
8424
HIP
109102
HD
209945
SAO
51650
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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
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Best season
Jul – Sep
(peak: Aug)
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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14
Light Travel Time Machine
15
Relativistic Travel
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Visibility scores assume a 150 mm Newton at Bortle 4.
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Article
Lacerta
Mythology, bright stars, and deep-sky highlights.
Constellation
