18 Sagittae — Star in Sagitta
Observe
1Physical Properties
Magnitude
6.13
Spectral Type
K1III
giant
Star Color
Orange
(B-V 1.04)
2Position & Identifiers
RA
20h 16m 19.7s
Dec
+21° 35' 55.0"
Constellation
Sagitta
(Sge)
HR
7746
HIP
99913
HD
192836
SAO
88433
Flamsteed
18 Sge
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3How easy to spot?
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Hard | Hard | V. 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
Jun – Aug
(peak: Jul)
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
Discover
14Stellar Notes
UMa stream.
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.
22 Vul
Observable variable star
Variable Star
mag 5.15
1.9°
Vulpecula
M27
Dumbbell Nebula
Planetary nebula — try an OIII filter
Planetary Nebula
mag 7.4
4.0°
Vulpecula
C37
NGC 6885
Open cluster
Open Cluster
mag 6.0
5.0°
Vulpecula
13 Vul
Tight double — a rewarding split at 1.5″
Double Star
mag 4.58
5.8°
Vulpecula
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Article
Sagitta
Mythology, bright stars, and deep-sky highlights.
Constellation
