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Anser — Star in Vulpecula

HIP 95771; Alpha Vulpeculae; 6 Vulpeculae

Magnitude 4.4m Star Vulpecula (Vul) Visible
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1Physical Properties

Magnitude 4.44
Range 4.39 - 4.46
Variable Type Slow Irregular Variable
Spectral Type M0III giant
Star Color Red (B-V 1.50)
Distance 233 ly

2Position & Identifiers

RA 19h 28m 42.3s
Dec +24° 39' 54.0"
Constellation Vulpecula (Vul)
HR 7405
HIP 95771
HD 183439
SAO 87261
Bayer Alpha
Flamsteed 6 Vul
SIMBAD Wikipedia

3How easy to spot?

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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Medium+ Medium Medium
50mm finder Easy Easy Easy
150mm scope Easy Easy Easy
Easy Medium Hard Very hard Impossible

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

4Visibility

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Best season Jun – Aug (peak: Jul)

5Survey Image

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7

Size Comparison

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8

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9

Spectral Classification

10

Hertzsprung-Russell Diagram

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Read: The Hertzsprung-Russell Diagram — Reading Stars Like a Map
11

Stellar Lifecycle

12

Blackbody Spectrum

13

Stellar Absorption Spectrum

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

14

Stellar Fusion

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15Stellar Notes

Secondary K0.
Arcturus group. Same space motion as Arcturus, HR 5340.
Anser (rarely used).
16

Light Travel Time Machine

17

Relativistic Travel

Nearby in the Sky

Other targets within a few degrees — pan your scope a little and keep exploring.

Visibility scores assume a 150 mm Newton at Bortle 4.

Albireo
HIP 95951; Beta2 Cygni; 6 Cygni
Easy
Colorful double, sep 34.7″
Double Star mag 5.11 3.3° Cygnus
NGC 6823
Easy
Open cluster
Open Cluster mag 7.1 3.6° Vulpecula
V473 Lyr
Hard+
Pulsating variable, period 1.5d
Variable Star mag 6.16 4.3° Lyra
M56
NGC 6779
Easy
Globular cluster — dense ball of ancient stars
Globular Cluster mag 8.3 6.1° Lyra
Show on Map

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