Delta And
HIP 3092; Delta And; 31 And
DoubleStar
And
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
3.27
Spectral Type
K3III
Star Color
Red
(B-V 1.28)
Distance
105.5 ly
Position & Identifiers
RA
00h 39m 19.7s
Dec
+30° 51' 39.0"
Constellation
And
HR
165
HIP
3092
Bayer
Delta
Flamsteed
31 And
Double Cat
548
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
28.9″
Companion Mag
12.4
Companion Sp
K4
Position Angle
299°
Star Colors
A: Red
B: Orange
Discoverer
BU 491
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 28.9″ · PA: 299° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
Size Comparison
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Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
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Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Notes
AB CPM. Component C, 15.2v at 48" optical.
ADS 548A, 15,000d, K 4.0k/s, V0 -8.5k/s, asini 785. Unresolved by speckle interferometry 1983.93.
Survey Image
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