HIP 94645 — Double Star in Sagittarius
Observe
1Physical Properties
Magnitude
6.25
Spectral Type
F9V
Star Color
Yellow
(B-V 0.54)
Distance
142 ly
2Position & Identifiers
RA
19h 15m 33.2s
Dec
-24° 10' 45.0"
Constellation
Sagittarius
(Sgr)
HR
7291
HIP
94645
HD
179949
SAO
187883
Querying VizieR catalog...
3How easy to split?
Primary
6.3 mag
Companion
10.1 mag
Separation
14.3″
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | Medium+ | Medium | Hard+ |
| 150 mm Newton 150mm Newt. | Easy | Easy | Medium+ |
| 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
14.3″
Companion Mag
10.1
Position Angle
69°
Star Colors
A: Yellow
B: Red
Discoverer
LLO 18
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
A: 6.2 · B: 10.1 · Sep: 14.3″ · PA: 69° · N up, E right
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
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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
14
Exoplanets
1 known planet
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View this system in the 3D Orrery
Interactive Keplerian orbits, procedural planet textures, habitable zone.
| Planet | Radius | Mass | Period | Distance |
|---|---|---|---|---|
| HD 179949 b | 13.90R⊕ | 0.92M♃ | 3.1d | 90ly |
Habitable Zone
Size & Mass Comparison
About exoplanets — how we find them and which host stars you can observe
Discover
15
Light Travel Time Machine
16
Relativistic Travel
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Visibility scores assume a 150 mm Newton at Bortle 4.
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