Theta Crt

HIP 56633; Theta Crt; 21 Crt Star Crt Visible Level 2 Small telescope (4")

Star Map Add to List Add to Plan Back to Catalog

Physical Properties

Magnitude 4.70

Spectral Type B9.5Vn

Star Color Blue-white (B-V -0.08)

Position & Identifiers

RA 11h 36m 40.9s

Dec -09° 48' 08.0"

Constellation Crt

HR 4468

HIP 56633

Bayer Theta

Flamsteed 21 Crt

Visibility

Set a location in User Settings to see visibility data.

Multiple Star System

Separation 177.8″

Companion Mag 17.9

Position Angle 279°

Star Colors A: Blue-white

Discoverer GWP1622

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 Fusion

Stellar Notes

Spectroscopic Binary

About 150d.

Survey Image

Loading survey image…