15 Lacertae — Star in Lacerta
Observe
1Physical Properties
Magnitude
4.94
Spectral Type
M0III
giant
Star Color
Red
(B-V 1.56)
Distance
155 ly
2Position & Identifiers
RA
22h 52m 02.0s
Dec
+43° 18' 45.0"
Constellation
Lacerta
(Lac)
HR
8699
HIP
112917
HD
216397
SAO
52436
Flamsteed
15 Lac
Double Cat
16325
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
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Best season
Jul – Sep
(peak: Aug)
5Survey Image
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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
AB, CPM. B, 12.2v at 26".
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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Article
Lacerta
Mythology, bright stars, and deep-sky highlights.
Constellation
