Menu

66 Eri

Observable Variable Star Excellent (65/100)

Range: 5.1 - 5.6, Period: 2.0d

HIP 23794; 66 Eri VariableStar Eridanus (Eri) Visible Level 2 Small telescope (4") - Monitor brightness changes
Star Map
Add to List Add to Plan Back to Catalog

Physical Properties

Magnitude 5.12
Spectral Type B9V+A1V
Star Color Blue-white (B-V -0.06)
Distance 136 ly

Position & Identifiers

RA 05h 06m 45.7s
Dec -04° 39' 18.0"
Constellation Eridanus (Eri)
HR 1657
HIP 23794
Flamsteed 66 Eri
Double Cat 3698

Visibility

Set a location in User Settings to see visibility data.

Comparison Stars

Nearby stable stars for estimating brightness (AAVSO)

Loading comparison stars…

Size Comparison

Querying VizieR for stellar data…

Compare Stars

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

E? 5.1 - 5.6v. About 2d.
B9.5, B9.5, 5.5227d, K 103.8k/s, V0 +32.6k/s, msin3i 2.38, asini 7.85. Nearly equal components; secondary is | the more massive, a mercury star. vsini of both components =<41k/s.

Light Travel Time Machine

Relativistic Travel

Survey Image

Loading survey image…

}