16 Lacertae — Star in Lacerta
Observe
1Physical Properties
Magnitude
5.59
Range
5.58 - 5.66
Period
12.1 days
Variable Type
Eclipsing Binary (Algol-type)
Spectral Type
B2IV
subgiant
Star Color
Blue-white
(B-V -0.14)
2Position & Identifiers
RA
22h 56m 23.6s
Dec
+41° 36' 14.0"
Constellation
Lacerta
(Lac)
HR
8725
HIP
113281
HD
216916
SAO
52512
Flamsteed
16 Lac
Variable ID
EN Lac
Double Cat
16381
Querying VizieR catalog...
3How easy to spot?
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Hard+ | 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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6
Size Comparison
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7
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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
ADS 16381A, Beta C, amp. 0.11B, 0.169170, 0.170770 and 0.181692d. Also EA, amp. 0.04V, 12.096816d.
AB relative position of component unchanged in a century. Probably physical. B, 11.5v F0 at 27". C, F5IV, optical, vsini | =<54k/s.
ADS 16381A, 12.097d, K 23.0k/s, V0 -13.0k/s, asini 3.82. RV pulsation 0.169166d.
Lac OB1.
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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