Observe
1Physical Properties
Magnitude
6.00
Range
6.0 - 9.4
Period
816 days
Variable Type
Symbiotic Variable (Z Andromedae)
Spectral Type
Peculiar
2Position & Identifiers
RA
21h 51m 02.0s
Dec
+12° 37' 29.0"
Constellation
Pegasus
(Peg)
HR
9130
HIP
107848
HD
207757
Variable ID
AG Peg
Querying VizieR catalog...
3How easy to follow?
Magnitude
6.0 – 9.4 mag
Amplitude
3.4 mag
Period
2.2 y
Type
ZAND+R
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Imp. | Imp. | Imp. |
| 50 mm finder 50mm finder | Medium | Hard+ | Hard |
| 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
Jul – Sep
(peak: Aug)
5Light Curve
6Comparison Stars for AG Peg (6.0–9.4)
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
Stellar Lifecycle
11
Blackbody Spectrum
12
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
13
Stellar Fusion
Discover
14Stellar Notes
Symbiotic Nova; Symbiotic nova; Very slow nova
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.
Enif
HIP 107315; Epsilon Pegasi; 8 Pegasi
Bright naked-eye star, mag 2.4
Double Star
mag 2.39
3.2°
Pegasus
M15
NGC 7078
Large bright globular cluster
Globular Cluster
mag 6.4
5.2°
Pegasus
NGC 7177
Bright spiral galaxy
Galaxy
mag 11.2
5.6°
Pegasus
HO Peg
Semi-regular variable, range 6.1–6.6
Variable Star
mag 6.89
8.7°
Pegasus
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