GAMMA (γ) LEONIS
MULTIPLE STAR
Right Ascension:
10h 19m 58s
Best Seen:
2/15 - 6/1
Declination:
19º 50' 27"
Combined
Magnitude:
2.01
Computer File:
gammaleo
Constellation:
Leo
Apparent
Separation:
4.50"
Actual
Compared to Sun
Distance
126 l.y.
--
Separation
16 billion miles
170 Earth/Sun
Orbital Period
600 - 700 years
--
Actual Brightness
--
118 / 41 (Sun)
Magnitude
2.49 / 3.64
--
Mass
--
--
Surface Gravity
--
--
Surface Composition (by mass)
74% hydrogen 24% helium 2% everything else
same (Sun)
Spectral Type
K1 IIIb / G7 III
G2 V (Sun)
Density (gram/cubic cm)
--
--
WHAT TO LOOK FOR THROUGH THE TELESCOPE:
-
Recommended eyepiece: 24mm or 40 mm.
-
When people look through the telescope they should see two stars next to each other. One star should be slightly brighter than the other.
GAMMA LEONIS INFORMATION:
-
Both of these stars are yellow.
-
The name of this object is “Algieba,” which means the Lion’s mane.
Item
Updated
Notes
Coordinates
08-30-2002
just “tweaked” a bit
Combined Magnitude
08-30-2002
OK w/ Scott’s The Flamsteed Collection
Apparent Separation
08-30-2002
with http://www.astronomical.org/constellations/leo.html
Distance
08-30-2002
OK w/ Flamsteed AND Hipparcos
Separation
08-30-2002
previous: 12 billion miles, 125 Earth/Sun – BUT found this site with this number: http://www.astronomy.org.nz/journal/2000/2000_may/LEO%20the%20LION.htm
Orbital Period
08-30-2002
OK, see separation: http://www.astronomy.org.nz/journal/2000/2000_may/LEO%20the%20LION.htm
Actual Brightness
08-30-2002
OK w/ Flamsteed
Magnitude
08-30-2002
OK w/ Flamsteed
Mass
Surface Gravity
Surface Composition
01-06-2003
OK for all stars
Spectral Type
08-30-2002
changed to match SIMBAD
Density
Other
08-30-2002
Item 2: http://www.seds.org/Maps/Stars_en/Fig/leo.html