Iota Piscis Austrini — Double Star in Piscis Austrinus
Observe
1Physical Properties
Magnitude
4.34
Spectral Type
A0V
Star Color
Blue-white
(B-V -0.05)
Distance
80 ly
2Position & Identifiers
RA
21h 44m 56.8s
Dec
-33° 01' 33.0"
Constellation
Piscis Austrinus
(PsA)
HR
8305
HIP
107380
HD
206742
SAO
213258
Bayer
Iota
Flamsteed
9 PsA
Querying VizieR catalog...
3How easy to split?
Primary
4.3 mag
Companion
11.4 mag
Separation
20.0″
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | Hard+ | Hard | V. hard+ |
| 150 mm Newton 150mm Newt. | Medium+ | Medium | Hard+ |
| Celestron C8 (203 mm SCT) C8 203mm | Medium+ | Medium+ | Medium |
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
Jul – Sep
(peak: Aug)
5Multiple Star System
Separation
20.0″
Companion Mag
11.4
Position Angle
290°
Star Colors
A: Blue-white
Discoverer
I 1051
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
A: 4.3 · B: 11.4 · Sep: 20.0″ · PA: 290° · N up, E right
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
Explore
7
Size Comparison
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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
Pleiades group.
16
Light Travel Time Machine
17
Relativistic Travel
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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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