Theta Hya
HIP 45336; Theta Hya; 22 Hya
DoubleStar
Hya
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
3.88
Spectral Type
A0V
Star Color
Blue-white
(B-V -0.06)
Distance
128.5 ly
Position & Identifiers
RA
09h 14m 21.9s
Dec
+02° 18' 51.0"
Constellation
Hya
HR
3665
HIP
45336
Bayer
Theta
Flamsteed
22 Hya
Double Cat
7253
Querying VizieR catalog...
Visibility
Set a location in User Settings to see visibility data.
Multiple Star System
Components
4
Component IDs
AB
Separation
20.6″
Companion Mag
9.9
Position Angle
256°
Star Colors
A: Blue-white
Discoverer
HJ 2489
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 20.6″ · PA: 256° · 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
AB optical.
ADS 7253A.
Wolf 630 group.
Lambda Boo star.
Survey Image
Loading survey image…