Psi Fornacis — Double Star in Fornax
Observe
1Physical Properties
Magnitude
5.92
Spectral Type
F6IV
subgiant
Star Color
Yellow-white
(B-V 0.44)
2Position & Identifiers
RA
02h 53m 34.4s
Dec
-38° 26' 13.0"
Constellation
Fornax
(For)
HR
863
HIP
13473
HD
18149
SAO
193965
Bayer
Psi
Querying VizieR catalog...
3How easy to split?
Primary
5.9 mag
Companion
9.0 mag
Separation
560.9″
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | Easy | Medium+ | Medium+ |
| 150 mm Newton 150mm Newt. | Easy | Easy | Easy |
| Celestron C8 (203 mm SCT) C8 203mm | 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
Sep – Nov
(peak: Oct)
5Multiple Star System
Separation
560.9″
Companion Mag
9.0
Companion Sp
F7V
Position Angle
222°
Star Colors
A: Yellow-white
B: Yellow
Discoverer
TOK 652
Eyepiece View
15x
Dawes: 1.9″
TFOV: 3.3°
Realistic = true angular size
A: 5.9 · B: 9.0 · Sep: 560.9″ · PA: 222° · N up, E right
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
Explore
6
Size Comparison
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7
Compare Stars
8
Spectral Classification
9
Hertzsprung-Russell Diagram
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10
Stellar Lifecycle
11
Blackbody Spectrum
12
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
13
Stellar Fusion
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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