T Cancri — Variable Star in Cancer
Excellent (62/100)
Observe
1Physical Properties
Magnitude
7.60
Range
7.6 - 10.5
Period
482 days
Variable Type
Semi-Regular Variable (Late-type Giant)
Spectral Type
C
Star Color
Deep ruby red
(B-V 3.00)
2Position & Identifiers
RA
08h 56m 40.0s
Dec
+19° 50' 57.0"
Constellation
Cancer
(Cnc)
HR
9112
HIP
43905
Variable ID
T Cnc
Querying VizieR catalog...
3How easy to follow?
Magnitude
7.6 – 10.5 mag
Amplitude
2.9 mag
Period
482 d
Type
SRB
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Imp. | Imp. | Imp. |
| 50 mm finder 50mm finder | Hard | V. hard+ | V. hard |
| 150 mm telescope 150mm scope | Easy | 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
Dec – Feb
(peak: Jan)
5Survey Image
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6Light Curve
7Comparison Stars for T Cnc (7.6–10.5)
Nearby stable stars for estimating brightness (AAVSO)
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Explore
8
Size Comparison
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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
Carbon star; Period 482d
Second reddest in Extended Hipparcos; Carbon star
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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