HIP 77990
Observable Double Star
Good (55/100)
Sep: 4.8", Companion: mag 8.4
HIP 77990
DoubleStar
Nor
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.77
Spectral Type
G5II-III+A3
Star Color
Yellow-white
(B-V 0.35)
Distance
116.5 ly
Position & Identifiers
RA
15h 55m 32.3s
Dec
-60° 10' 40.0"
Constellation
Nor
HR
5900
HIP
77990
Querying VizieR catalog...
Visibility
Set a location in User Settings to see visibility data.
Multiple Star System
Separation
4.8″
Companion Mag
8.4
Position Angle
103°
Star Colors
A: Yellow-white
B: Orange
Discoverer
HJ 4813
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 4.8″ · PA: 103° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
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
Binary.
Sr and 4152 strong. Possibly Am or Fm component. Earlier grating spectra yielded A3/A7/F0II-III from K | line/hydrogen/metallic lines, respectively.
Survey Image
Loading survey image…