Menu

2 Lac

HIP 110351; 2 Lac DoubleStar Lac Visible Level 3 Medium telescope (6-8") - Requires steady seeing
Star Map
Add to List Add to Plan Back to Catalog

Physical Properties

Magnitude 4.57
Range 4.54 - 4.56
Period 31.4 hours
Variable Type Slowly Pulsating B Star
Spectral Type B6V
Star Color Blue-white (B-V -0.10)
Distance 82 ly

Position & Identifiers

RA 22h 21m 01.6s
Dec +46° 32' 12.0"
Constellation Lac
HR 8523
HIP 110351
Flamsteed 2 Lac
Double Cat 15862

Visibility

Set a location in User Settings to see visibility data.

Light Curve

Multiple Star System

Separation 47.6″
Companion Mag 11.5
Position Angle
Star Colors A: Blue-white
Discoverer HJ 1755

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E A (4.6) B (11.5)

Sep: 47.6″ · PA: 6° · 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 Fusion

Stellar Notes

ADS 15862A, Ell?, 4.53 - 4.56V.
Visual companion is optical.
ADS 15862A, 2.6164d, K 79.5k/s, V0 -8.9k/s, msin3i 0.873, asini 2.86. Secondary about 1m fainter.

Survey Image

Loading survey image…