Menu

V774 Tauri — Double Star in Taurus

Magnitude 6.3m DoubleStar Taurus (Tau) Visible
Star Map
+ List + Plan Star Hop

Observe

1Physical Properties

Magnitude 6.31
Range 6.28 - 6.37
Variable Type BY:
Spectral Type G0IV subgiant
Star Color Yellow (B-V 0.59)

2Position & Identifiers

RA 04h 15m 29.2s
Dec +06° 11' 12.0"
Constellation Taurus (Tau)
HR 1322
HIP 19859
HD 26923
SAO 111698
Variable ID V774 Tau
Double Cat 3085

3How easy to split?

Primary 6.3 mag Companion 7.0 mag Separation 64.6″
Sign in and configure your equipment and default location to see a personalized row.
Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Easy Easy Easy
150mm Newt. Easy Easy Easy
C8 203mm Easy Easy Easy
Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

4Visibility

Set a location in User Settings to see visibility data.

Best season Oct – Dec (peak: Nov)

5Multiple Star System Quadruple C: optical

Components 4 (quadruple)
Component IDs AB
Separation 64.6″
Companion Mag 7.0
Companion Sp G3V
Position Angle 316°
Star Colors A: Yellow B: Yellow
Discoverer STTA 45
CPM with HR 1321.

Separation over time

Measured 1782 → 2021 (239 y)
Separation drift 62.6" → 64.6" (+2.00")
Rate +0.0084" / y
PA drift 314° → 316° (+2°, +0.008°/y)

Slow change over generations — observable in lifetime comparisons.

Measured from the WDS observational archive. No orbital solution has been derived — most likely the period is too long to fit an orbit to the available measurement arc.

Eyepiece View

Log in to set your own equipment
80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 316°

A: 6.3 · B: 7.0 · Sep: 64.6″ · PA: 316° · N up, E right

Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″

Explore

6

Size Comparison

Querying VizieR for stellar data…
7

Compare Stars

8

Spectral Classification

9

Hertzsprung-Russell Diagram

Loading HR diagram…
10

Stellar Lifecycle

11

Blackbody Spectrum

12

Stellar Absorption Spectrum

Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.

13

Stellar Fusion

Discover

14Stellar Notes

6.28 - 6.37V.
}