[bigjoe (JOSEPH)]

Well Folks....

EIGHT Stars have been selected for this months Constellation......... ORION.

Try all, or any in your scope and EPs, and tell us what you see...ALL NOVICE AND VETERAN Astronomers welcome to have a shot.
Remember....
PA is just the position angle, no need to worry about that here.

Some Stf and Herschel stars, will be included in next months Constellation . Most selected will be readily seen, and found in the screen shots off SKYSAFARI PRO below.

This months List for ORION is....

RIGEL(Beta Orionis): Separation 9.5". Magnitude of pair AB : 0.28, 6.8.
PA 202°. What do you see?
RA 05h 15m 24s DEC -08°11' 02".


31 ORIONIS: Separation of pair is 12.8". PA 88°. Mags of pair AB: 4.7, 9.7 ...An absolute GEM...Colours seen?
RA 05h 30m 38s. DEC -01°04' 52".


RHO ORIONIS (p ): Separation 6.9". PA 62°
AB: MAGS 4.5, 8.5.. a pretty double.
RA 5h 13.1m. DEC +02° 51' 40".


SIGMA ORIONIS: (σ Orionis).... Superb.
AB Combined at Mag 3.7, is too close to separate for anyone, star C at magnitude 8.7 at a Separation of 11.6 " away from the AB pair isnt....
with two magnitude 6.6 stars, Called D and E, at separations 12.7" and 41.50" respectively from the AB pair ......so you'll actually see four coloured stars.......
What colours do you see? Lovely Struve 761 a triple also in FOV.
RA 05h 38m 45s . DEC -02° 36' 00".



ZETA ORIONIS (ALNITAK): Actually a triple! A, B, C. Near the Horsehead on the charts below, and PART OF ORIONS BELT.
PA 167°.
Magnitudes A: 1.77 , B: 3.7 , C: 9.6
Separation AB: 2.18″..... Sep to BC: 58.0"
RA 05h 41m 39s DEC -01° 56' 10"

SAIF AL JABBAH (ETA ORIONIS): PA 77°..SEPARATION 1.8"..Looks like an n on the SS charts below.
AB: Magnitudes 3.39, 4.89.
RA 04h 24m 09s DEC -02° 23' 50".


32 ORIONIS: PA 44°... Separation 1.3". Brightest star just inside Orion near Bellatrix. MAGS AB: 4.23, 5.75 .
RA 05h 30m 47s DEC +05°56' 53" .
Use DAWES LIMIT for your scope as equal enough..Sep given in Eaglecreek observatory and elsewhere is wrong..not 0 .7".


52 ORIONIS: SEPARATION 1.0" PA 220°.
Mags AB: 5.99, 6.03 ............Very, very, TOUGH, at or near 120mm aperture; needs very good seeing with aforementioned aperture...at least they are equal pairs, making it easier than otherwise using Dawes limit for your scope.
RA 05h 48m 58s DEC +06° 27' 27".

Remember were not twisting anyones arm here, were aware of many peoples Double Star Inertia....No obligation to try them all; a few sentances will do, on what you've seen, equipment used, EVEN high power Binos that some have , and magnification used will do, when you have the free time for this months Constellation, observe then post.

PS: As usual any amendments, or suggestions for next months Constellation welcome.

Cheers and goodluck bigjoe.