FF Aql
Observable Variable Star
Excellent (60/100)
Range: 5.2 - 5.7, Period: 4.5d
HIP 93124
VariableStar
Aql
Visible
Level 2
Small telescope (4") - Monitor brightness changes
Physical Properties
Magnitude
5.38
Spectral Type
F8Ib
Star Color
Orange
(B-V 0.80)
Position & Identifiers
RA
18h 58m 14.7s
Dec
+17° 21' 39.0"
Constellation
Aql
HR
7165
HIP
93124
Variable ID
FF Aql
Double Cat
11884
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Visibility
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Comparison Stars for FF Aql (5.2–5.7)
Nearby stable stars for estimating brightness (AAVSO)
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Multiple Star System
Separation
7.0″
Companion Mag
10.1
Position Angle
146°
Star Colors
A: Orange
Discoverer
HO 91
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 7.0″ · PA: 146° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
Size Comparison
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Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
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Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Notes
ADS 11884A, CDelta 5.18 - 5.68V, 4.470916d. Magnetic field. Possible blue companion.
Companion blue star?
1435d, K 3.5k/s, V0 -17.4k/s, asini 69.1. RV may also vary in 4109d.
Survey Image
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