30 Piscium — Star in Pisces
Observe
1Physical Properties
Magnitude
4.41
Range
4.31 - 4.41
Variable Type
Semi-Regular Variable
Spectral Type
M3III
giant
Star Color
Red
(B-V 1.63)
Distance
544 ly
2Position & Identifiers
RA
00h 01m 57.6s
Dec
-06° 00' 51.0"
Constellation
Pisces
(Psc)
HR
9089
HIP
154
HD
224935
SAO
147042
Flamsteed
30 Psc
Variable ID
YY Psc
Querying VizieR catalog...
3How easy to spot?
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and configure your equipment and default location to see a personalized row.
| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Medium+ | Medium+ | Medium |
| 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
Aug – Oct
(peak: Sep)
5Survey Image
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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
Lb? 4.35 - 4.41V.
Ultraviolet FeII emission.
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.
Explore Nightbase
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1919 eclipse expedition confirming general relativity; first theory of stellar interiors; the Eddington limit
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From birth in a nebula to spectacular death — how stars are born, shine, swell, and die, and how to read the clues in their starlight.
Article
Pisces
Mythology, bright stars, and deep-sky highlights.
Constellation
