TY Fornacis — Double Star in Fornax
Observe
1Physical Properties
Magnitude
6.51
Range
6.49 - 6.51
Period
1.2 hours
Variable Type
Delta Scuti (Low Amplitude)
Spectral Type
dA9n
Star Color
Yellow-white
(B-V 0.29)
2Position & Identifiers
RA
02h 30m 13.8s
Dec
-25° 11' 11.0"
Constellation
Fornax
(For)
HR
733
HIP
11644
HD
15634
Variable ID
TY For
Querying VizieR catalog...
3How easy to split?
Primary
6.5 mag
Companion
8.9 mag
Separation
0.6″
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | V. hard | V. hard | V. hard |
| 150 mm Newton 150mm Newt. | V. hard+ | V. hard+ | V. hard+ |
| Celestron C8 (203 mm SCT) C8 203mm | V. hard+ | V. hard+ | V. hard+ |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
To reach "Medium" at Bortle 3, you'd need at least a 430 mm reflector.
4Visibility
Set a location in User Settings to see visibility data.
Best season
Sep – Nov
(peak: Oct)
5Light Curve
6Multiple Star System
Separation
0.6″
Companion Mag
8.9
Position Angle
77°
Star Colors
A: Yellow-white
B: Yellow
Discoverer
HDS 325
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
A: 6.5 · B: 8.9 · Sep: 0.6″ · PA: 77° · N up, E left
Unresolved · 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
6.49 - 6.51V, 0.05d, pulsating.
Hyades group.
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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