HIP 8847 — Double Star in Perseus
Observe
1Physical Properties
Magnitude
6.45
Spectral Type
A5m
Star Color
Yellow-white
(B-V 0.18)
2Position & Identifiers
RA
01h 53m 48.5s
Dec
+55° 35' 53.0"
Constellation
Perseus
(Per)
HR
540
HIP
8847
HD
11408
SAO
22716
Querying VizieR catalog...
3How easy to split?
Primary
6.5 mag
Companion
9.5 mag
Separation
11.6″
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | Medium+ | Medium+ | Medium |
| 150 mm Newton 150mm Newt. | Easy | Easy | Easy |
| Celestron C8 (203 mm SCT) C8 203mm | 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
Sep – Nov
(peak: Oct)
5Multiple Star System
Separation
11.6″
Companion Mag
9.5
Position Angle
263°
Star Colors
A: Yellow-white
B: Yellow
Discoverer
DRS 35
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
A: 6.5 · B: 9.5 · Sep: 11.6″ · PA: 263° · N up, E right
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
Explore
6
Size Comparison
Querying VizieR for stellar data…
7
Compare Stars
8
Spectral Classification
9
Hertzsprung-Russell Diagram
Loading HR diagram…
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
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.
1 Per
Eclipsing binary, period 25.9d
Variable Star
mag 5.52
0.5°
Perseus
NGC 744
Open cluster
Open Cluster
mag 7.9
0.7°
Perseus
M76
Little Dumbbell Nebula
Planetary nebula — try an OIII filter
Planetary Nebula
mag 10.1
4.4°
Perseus
Phi Cas
Easy double, sep 134.1″
Double Star
mag 4.98
5.3°
Cassiopeia
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