HIP 99461
HIP 99461
DoubleStar
Sgr
Visible
Level 4
Large telescope (10"+) - Requires steady seeing
Physical Properties
Magnitude
5.32
Spectral Type
K3V
Star Color
Orange
(B-V 0.87)
Distance
18.2 ly
Position & Identifiers
RA
20h 11m 11.9s
Dec
-36° 06' 04.0"
Constellation
Sgr
HR
7703
HIP
99461
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Visibility
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Multiple Star System
Components
4
Component IDs
AD
Separation
4.3″
Companion Mag
11.5
Position Angle
130°
Star Colors
A: Orange
Discoverer
HJ 5173
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 4.3″ · PA: 130° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
Size Comparison
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Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
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Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Notes
AB CPM. B, 11v dM5, sep. 6.6". Wroclaw contr. no. 16 gives mag. differences but no sep. for four components: AB 5.4v, | AC 5.15, and AD 4.0. Possible misidentification? Discovered by John Herschel as simply double. Components C and D | apparently first listed by van Albada at Lembang in 1958; only magnitudes and no separations were indicated.
Survey Image
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