| Bob Hogeveen | ||||
| Star:
Delta
Orion
Date & Time: November 18, 2000, 00:00 MET Seeing: --- <1-10 Seeing Scale (10 best)> Location of site: Annen, The Netherlands (53 N, 6 E) Site classification: Village-backyard Sky darkness: 4 <Limiting magnitude> Conditions: Some clouds Temperature: 5ºC Binocular: Swift Supreme 10x50 (on tripod) |
Delta
Ori is
a difficult double for bino's in the range of 10x50. The separation is
large enough (52"), but the difference in magnitudes is great (2.2 -
6.3)
which makes it hard to see the faint B next to the bright A.
This time I didn't succeed in spotting B. I might be a
combination
of factors which are the reason for this :
I don't know what it is, but 25 to 20 years ago I was able to split Delta with this same pair of bino's. So you can give it a try, with good bino's, good eyes and good conditions, Delta is within reach of 10x50 bino's. |
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| Tim Leese | ||||
| Star:
Delta
Orion
Date & Time: 20-November-2000 ( 23:30UT ) Seeing: 7-8 <1-10 Seeing Scale (10 best)> Location of site: Cheshire. UK 53° 15' N –2º 33' W Site classification: Suburban Sky darkness: 4 <Limiting magnitude> Conditions: Very clear and still sky between clouds. Binoculars: 12X50 Olympus 5.3deg FOV (hand held)
|
Leaning
against
the house wall to hold the binoculars steady I could just make
out
the companion to Delta Ori (Mintaka).
To me the faint
companion
seemed a blue colour against the glare of the blue/white
|
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| Eddy O'Connor | ||||
| Star:
Delta Orion
Date & Time: Dec 5th 2000. 10 -11p.m local; UT +11 Seeing: 5-6 <1-10 Seeing Scale (10 best)> Transparency: 6/10 Temperature: 18ºC Other Conditions: Calm. Moon 9 days old Location of Site: Terara, New South Wales Australia, S34.52, W150.38 degrees. Site Classification: Suburban Sky darkness: North 4; South 4.5 <Limiting magnitude> Binoculars: 7X35 Tento. 25X100 Somet. (Occasional 16" Dob comparisons ) HS: 2 HS= Harshaw Scale1-5 (1 best) |
This
is the
most northerly mag. 2 star in Orion's belt and is a worthy binocular or
small telescope object. In this triple system, a telescope reveals both
a close faint 13.7 companion (not visible tonight) and a wider 6.3mag.
companion at 53" separation. The primary had a creamy look tonight and
the wide companion appeared a deep Blue colour.
Comments: The
field was surprisingly
sparce adding to the contrast of this impressive double. Hartung
suggests
using this star because of it nearness to the celestial equator to
determine
the field diameter of oculars.[The time taken in seconds for the star
to
drift centrally across the FOV divided by 4 gives its diameter in
minutes
of arc]
|
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| William L. Schart | ||||
| Star:
Delta Orion
Date & Time: 1/5/01 8:30 - 8:45 pm CST 8:30 -8:48 pm CST. Seeing: 7 <1-10 Seeing Scale (10 best)> Location of site: Killeen, TX (Lat 31 N, Elev 600 ft) Site classification: Suburban Sky darkness: 4 <Limiting magnitude> Moon: waxing gibbous Binoculars: Tasco 10x50 binos |
A good clean split on this. The primary appeared W and the secondary B. | |||
| Thad Robosson | ||||
| Star:
Delta Orion
Date & Time: 1-17-01, 3:30 - 5:30 UT Seeing: 4~5 <1-10 Seeing Scale (10 best)> Weather: clear, but quite chilly at 45°F (Hey, it's cold to us....) Location of Site: Phoenix, AZ 112 08.029w, 33 32.674n Site Classification: Suburban Sky darkness: -- <Limiting magnitude> Transparency: 3~4/10 Binoculars: 10x50 on homemade bino mount. |
A
bit tighter,
I spent some time convincing myself I saw the comp. Nearly PA of
0° and is slightly blue. Main is white.
Ambiance: Not
much. Traffic
as background noise, all the animals were inside. No gunshots to
report,
but one ambulance.
|
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| Carol Locomiak | ||||
| Star:
Delta Orionis
Date & Time: UT Feb 14th, 01:00 till 04:00 Seeing: 7 <1-10 Seeing Scale (10 best)> Transparency: Very good 8/10 Temperature: 20°F Other Conditions: Slight breeze; no Moon Location of Site: Tomahawk WI, USA 45ºN 89ºW Site Classification: Rural Sky darkness: 8/10 Binoculars: Oberwerk 22x100 |
Sep.
52.60"
// mags 2.25 and 6.6
Primary white, secondary was a very beautiful indigo/violet. This was the very first time I'd ever seen this color although I've read reports of others detecting the color. Very peaceful. |
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| Paolo Morini | ||||
| Star:Delta
Ori Date & Time: Nov 19, 2000, 21:40 UTC Seeing: -- Location of site: home, Ravenna, Italy Site classification: Urban backyard Sky darkness: 4<Limiting magnitude> Conditions:-- Temperature: 8° C Binocular: Canon IS 15x45 |
Very nice, one of my favourite binoculars split! |
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