Observe
1Physical Properties
Magnitude
5.33
Spectral Type
G8-K0III-IV
Star Color
Orange
(B-V 0.91)
Distance
109 ly
2Position & Identifiers
RA
19h 09m 52.7s
Dec
-68° 25' 29.0"
Constellation
Pavo
(Pav)
HR
7221
HIP
94150
HD
177389
SAO
254475
Querying VizieR catalog...
3How easy to split?
Primary
5.3 mag
Companion
7.6 mag
Separation
449.2″
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | Easy | Easy | Easy |
| 150 mm Newton 150mm Newt. | Easy | Easy | Easy |
| Celestron C8 (203 mm SCT) C8 203mm | 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)
5Multiple Star System
Separation
449.2″
Companion Mag
7.6
Companion Sp
G1V
Position Angle
1°
Star Colors
A: Orange
B: Yellow
Discoverer
SHY 314
Eyepiece View
15x
Dawes: 1.9″
TFOV: 3.3°
Realistic = true angular size
A: 5.3 · B: 7.6 · Sep: 449.2″ · PA: 1° · N up, E right
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
Explore
6
Size Comparison
Querying VizieR for stellar data…
7
Compare Stars
8
Spectral Classification
9
Hertzsprung-Russell Diagram
Loading HR diagram…
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
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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