Southern Doubles, Stars and Variables
SOUTHERN ASTRONOMICAL DELIGHTS : Presented by Andrew James
PAGE DS 021
LAST UPDATED
10 Mar 2009
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RA : 21h
Dec : -30° to -90°
Constellations : Mic, PsA, Ind, Gru, Pav, Oct.
Best Observed : Jul - Nov (Text Ordered by RA)
RA : 21h
Dec : -30° to -90°
DS 00h 01h 02h 03h 04h 05h 06h 07h 08h 09h 10h 11h
NEW 12h 13h 14h 15h 16h 17h 18h 19h 20h 21h 22h 23h
PAGE INDEX

SOUTHERN DOUBLES
HJ 5299
SOUTHERN VARIABLES
NONE LISTED

BRIGHT STARS
NONE LISTED

OTHER DOUBLES
and VARIABLES

NONE LISTED

DEEP SKY
NONE LISTED


NOTES 1
Positions given as;
I.e. (13583-6018), are;
RIGHT ASCENSION
13h 58.3m
DECLINATION
-60° 15'
EPOCH
2000.0
This follows the current
WDS Conventions.

NOTES 2
S E P A R A T I O N
" or "arcsec
In arc seconds or
' or 'arcmin
In arc minutes or
mas - milli arc seconds

POSITION ANGLE
( ° ) Angle in degrees.
Measured from
North through East

M A G N I T U D E S
v - visual (naked-eye)
p - photographic
V - Photometric Visual
B - Photometric Blue
MV - Absolute @ 10pc.

ABBREVIATIONS
pc. - parsecs
ly. - light-years
AU - Astronomical Unit

NOTES 3
O R B I T A L
E L E M E N T S

T: Periastron (yr.)
P: Period (yr.)
a: Semi-Major Axis (arc sec.)
e: Eccentricity
i: Inclination
Ω: Orbital Node (°)
ω: Angle True Orbit (°)

See BASIC
DOUBLE STAR
INFORMATION

SELECTED SOUTHERN DOUBLES and VARIABLES
R.A. 21 Hours


HJ 5299 (21548-3926) is an equal magnitude pair 0.9°SSW (6'W and 30'S) from the planetary nebula IC 5148. The magnitudes are 8.9 and 9.0, respectively, and both appear yellow-orange as reflected in the late K0 spectral types. Later references state that the primary is a much hotter B8 subgiant. HJ 5299 is a wide 33.5 srcsec, set at PA c.56°. The duo is clearly visible in 7.5cm telescopes. Proper motions of each star makes this probably an optical pair.


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Southern Astronomical Delights”
© (2009)
LAST UPDATED
10 Mar 2009