RX Leporis — Variable Star in Lepus
Showpiece (75/100)
Observe
1Physical Properties
Magnitude
5.68
Range
5.12 - 6.65
Period
80 days
Variable Type
Semi-Regular Variable (Late-type Giant)
Spectral Type
M6III
giant
Star Color
Red
(B-V 1.46)
2Position & Identifiers
RA
05h 11m 22.8s
Dec
-11° 50' 57.0"
Constellation
Lepus
(Lep)
HR
1693
HIP
24169
HD
33664
SAO
150206
Variable ID
RX Lep
Querying VizieR catalog...
3How easy to follow?
Magnitude
5.0 – 7.4 mag
Amplitude
2.4 mag
Period
79.54 d
Type
SRB
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | V. hard | V. hard | Imp. |
| 50 mm finder 50mm finder | Easy | Easy | Medium+ |
| 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
Nov – Jan
(peak: Dec)
5Survey Image
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6Light Curve
7Comparison Stars for RX Lep (5.0–7.4)
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
SRb 5.0 - 7.4v, 60:d.
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.
NGC 1784
Bright spiral galaxy
Galaxy
mag 11.8
1.5°
Lepus
R Lep
Mira-type variable, range 5.5–11.7
Variable Star
mag 7.71
4.1°
Lepus
Mu Lep
Variable star, range 3.0–3.4
Variable Star
mag 3.31
4.4°
Lepus
66 Eri
Variable star, range 5.1–5.6
Variable Star
mag 5.12
7.3°
Eridanus
NGC 1999
Reflection nebula around a bright star
Reflection Nebula
mag 9.50
8.0°
Orion
V1031 Ori
Eclipsing binary, period 3.4d
Variable Star
mag 6.03
8.9°
Orion
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Article
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