QU Normae — Star in Norma
Observe
1Physical Properties
Magnitude
5.35
Range
5.27 - 5.41
Period
4.8 days
Variable Type
ACYG:
Spectral Type
B1.5Iape
Star Color
Yellow
(B-V 0.56)
2Position & Identifiers
RA
16h 29m 42.3s
Dec
-46° 14' 36.0"
Constellation
Norma
(Nor)
HR
6131
HIP
80782
HD
148379
Variable ID
QU Nor
Querying VizieR catalog...
3How easy to spot?
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Medium | Hard+ | Hard |
| 50 mm finder 50mm finder | Easy | Easy | Easy |
| 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
Apr – Jun
(peak: May)
Explore
5
Size Comparison
Querying VizieR for stellar data…
6
Compare Stars
7
Spectral Classification
8
Hertzsprung-Russell Diagram
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9
Stellar Lifecycle
10
Blackbody Spectrum
11
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
12
Stellar Fusion
Discover
13Stellar Notes
Gamma Cas 5.29 - 5.41V.
Ara OB1a; Sco-Cen assoc.
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.
NGC 6178
Open cluster
Open Cluster
mag 7.2
1.2°
Scorpius
Epsilon Nor
Easy double, sep 22.9″
Double Star
mag 4.47
1.4°
Norma
V861 Sco
Eclipsing binary, period 7.8d
Variable Star
mag 6.15
7.3°
Scorpius
NGC 6139
Globular cluster — dense ball of ancient stars
Globular Cluster
mag 9.2
7.4°
Scorpius
Explore Nightbase
Related knowledge, tools, and stories — no observation planning required.
Arthur Eddington
1919 eclipse expedition confirming general relativity; first theory of stellar interiors; the Eddington limit
Biography
Norma
Mythology, bright stars, and deep-sky highlights.
Constellation
The Hertzsprung-Russell Diagram — Reading Stars Like a Map
The HR diagram turns the night sky into a physics map: every named star has a spot, every spot tells you mass, age, and fate. A guide for amateur observers.
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