UU Aurigae — Variable Star in Auriga
Excellent (66/100)
Observe
1Physical Properties
Magnitude
5.29
Range
5.1 - 6.6
Period
234 days
Variable Type
Semi-Regular Variable (Late-type Giant)
Spectral Type
C5II
Star Color
Deep ruby red
(B-V 2.61)
Distance
652 ly
2Position & Identifiers
RA
06h 36m 32.9s
Dec
+38° 26' 43.0"
Constellation
Auriga
(Aur)
HR
2405
HIP
31579
HD
46687
Variable ID
UU Aur
Querying VizieR catalog...
3How easy to follow?
Magnitude
5.1 – 6.6 mag
Amplitude
1.5 mag
Period
234 d
Type
SRB
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Hard | V. hard+ | V. hard |
| 50 mm finder 50mm finder | Easy | Easy | Easy |
| 150 mm telescope 150mm scope | 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
Nov – Jan
(peak: Dec)
5Light Curve
6Comparison Stars for UU Aur (5.1–6.6)
Nearby stable stars for estimating brightness (AAVSO)
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Explore
7
Size Comparison
Querying VizieR for stellar data…
8
Compare Stars
9
Spectral Classification
10
Hertzsprung-Russell Diagram
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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
Discover
15Stellar Notes
SRb 7.83 - 10.00B, 8.2 - 10.0p, 234d. Mean mag. varies in per. about 3500d.
Infrared spectra show CO, CN and C2 molecules.
16
Light Travel Time Machine
17
Relativistic Travel
Survey Image
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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.
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Article
Auriga
Mythology, bright stars, and deep-sky highlights.
Constellation
