Chi Aquarii — Variable Star in Aquarius
Excellent (65/100)
Observe
1Physical Properties
Magnitude
5.06
Range
4.75 - 5.10
Period
35 days
Variable Type
Semi-Regular Variable
Spectral Type
M3III
giant
Star Color
Red
(B-V 1.60)
Distance
362 ly
2Position & Identifiers
RA
23h 16m 50.9s
Dec
-07° 43' 36.0"
Constellation
Aquarius
(Aqr)
HR
8850
HIP
114939
HD
219576
SAO
146612
Bayer
Chi
Flamsteed
92 Aqr
Variable ID
Chi Aqr
Querying VizieR catalog...
3How easy to follow?
Magnitude
4.9 – 5.3 mag
Amplitude
0.4 mag
Period
35.25 d
Type
SR
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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 | Hard+ | Hard+ | Hard+ |
| 150 mm telescope 150mm scope | Hard+ | Hard+ | Hard+ |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
Out of reach for typical amateur telescopes, even at Bortle 3.
4Visibility
Set a location in User Settings to see visibility data.
Best season
Aug – Oct
(peak: Sep)
5Survey Image
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6Light Curve
7Comparison Stars for Chi Aqr (4.9–5.2)
Nearby stable stars for estimating brightness (AAVSO)
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Explore
8
Size Comparison
Querying VizieR for stellar data…
9
Compare Stars
10
Spectral Classification
11
Hertzsprung-Russell Diagram
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12
Stellar Lifecycle
13
Blackbody Spectrum
14
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
15
Stellar Fusion
Discover
16Stellar Notes
Lb 4.9 - 5.25V, 6.5 - 6.8p.
17
Light Travel Time Machine
18
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.
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Article
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Mythology, bright stars, and deep-sky highlights.
Constellation
