19 Leo
Observable Variable Star
Fair (36/100)
Range: 4.4 - 11.3, Period: 310.0d
HIP 48029; 19 Leo
VariableStar
Leo
Visible
Level 2
Small telescope (4") - Monitor brightness changes
Physical Properties
Magnitude
6.45
Range
4.4 - 11.3
Period
310.000 days
Spectral Type
A7Vn
Star Color
Yellow-white
(B-V 0.43)
Position & Identifiers
RA
09h 47m 25.9s
Dec
+11° 34' 06.0"
Constellation
Leo
HR
3880
HIP
48029
Flamsteed
19 Leo
Querying VizieR catalog...
Visibility
Set a location in User Settings to see visibility data.
Comparison Stars for 19 Leo
Nearby stable stars for estimating brightness (AAVSO)
Loading comparison stars…
Multiple Star System
Separation
0.1″
Companion Mag
6.9
Position Angle
9°
Star Colors
A: Yellow-white
Discoverer
MCA 34
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.1″ · PA: 9° · N up, E left
Unresolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
Size Comparison
Querying VizieR for stellar data…
Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
Loading HR diagram…
Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Notes
Binary 7.0, 7.2v, sep. 0.031", resolved by speckle interferometry at 4-meter Mayall telescope, but unresolved 1983.96 | at Pic du Midi. Combined mag., colors.
Survey Image
Loading survey image…