21 Vul
HIP 99738; 21 Vul
Star
Vul
Visible
Level 2
Small telescope (4")
Physical Properties
Magnitude
5.18
Variable Type
Delta Scuti (Pulsating)
Spectral Type
A7IVn
Star Color
Yellow-white
(B-V 0.18)
Distance
326.2 ly
Position & Identifiers
RA
20h 14m 14.5s
Dec
+28° 41' 41.0"
Constellation
Vul
HR
7731
HIP
99738
Flamsteed
21 Vul
Variable ID
NU Vul
Querying VizieR catalog...
Visibility
Set a location in User Settings to see visibility data.
Size Comparison
Querying VizieR for stellar data…
Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
Loading HR diagram…
Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Notes
Delta Sct, 16.478d, amp. 0.07V.
Shell star.
Survey Image
Loading survey image…