Observe
1Physical Properties
Magnitude
5.59
Range
5.58 - 6.11
Period
44.4 hours
Variable Type
Eclipsing Binary (Algol-type)
Spectral Type
B7V
Star Color
Blue-white
(B-V -0.10)
2Position & Identifiers
RA
15h 18m 56.4s
Dec
-40° 47' 18.0"
Constellation
Lupus
(Lup)
HR
5687
HIP
74950
HD
135876
Variable ID
GG Lup
Querying VizieR catalog...
3How easy to follow?
Magnitude
5.6 – 6.1 mag
Amplitude
0.5 mag
Period
1.85 d
Type
EA
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | V. hard+ | V. hard | V. hard |
| 50 mm finder 50mm finder | Medium | Medium | Hard+ |
| 150 mm telescope 150mm scope | 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
Apr – Jun
(peak: May)
5Light Curve
6Comparison Stars for GG Lup (5.6–6.1)
Nearby stable stars for estimating brightness (AAVSO)
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Explore
7
Size Comparison
Querying VizieR for stellar data…
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
EB 5.49 - 6.0B, 2.164175d. Period 1.85 found for secondary min.
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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Article
Lupus
Mythology, bright stars, and deep-sky highlights.
Constellation
