109 Virginis — Double Star in Virgo
Observe
1Physical Properties
Magnitude
3.72
Spectral Type
A0IIInn
bright giant
Star Color
Blue-white
(B-V -0.01)
Distance
134 ly
2Position & Identifiers
RA
14h 46m 14.9s
Dec
+01° 53' 34.0"
Constellation
Virgo
(Vir)
HR
5511
HIP
72220
HD
130109
SAO
120648
Flamsteed
109 Vir
Querying VizieR catalog...
3How easy to split?
Primary
3.7 mag
Companion
9.7 mag
Separation
0.6″
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | V. hard | V. hard | V. hard |
| 150 mm Newton 150mm Newt. | V. hard | V. hard | V. hard |
| Celestron C8 (203 mm SCT) C8 203mm | V. hard | V. hard | V. hard |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
Out of reach for typical amateur telescopes, even at Bortle 3.
4Visibility
Set a location in User Settings to see visibility data.
Best season
Mar – May
(peak: Apr)
5Multiple Star System
Separation
0.6″
Companion Mag
9.7
Position Angle
97°
Star Colors
A: Blue-white
Discoverer
JNN 9
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
A: 3.7 · B: 9.7 · Sep: 0.6″ · PA: 97° · N up, E right
Unresolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
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7
Size Comparison
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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
15
Light Travel Time Machine
16
Relativistic Travel
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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