1 Pegasus 

Richard Harshaw
Star: 1 Pegasus 
Location of site: Northern Kansas City, Missouri (USA) 
94d 30m west longitude, 39d 15m north latitude 
980 ft above Mean Sea Level 
Date of observations (UT): UT: 02:15 of Sept. 16, 2000 
Site classification: suburban 
Sky conditions
seeing-- 4/10 up to 8/10, in short spans of time 
transparency-- 8 out of 10 
limiting visual magnitude-- 5.0 mag 
Telescope: Celestron C-8 
Eyepiece: 20mm  (104x) 
 
 
Position:  2122+1948 
Magnitudes:  4.1, 8.2, 11.9 
Sep/PA's:  AB is 36 = / 312 +.  AC is 75 = / 20 =. 
Year of last measurement:  1967 
Distance (light years):  154 
Luminosity (in suns):  44 
Eyepiece and magnification:  20mm  (104x) 
Colors noted:  dY!! and B, with C too faint to tell.  The primary is intense!  Webb saw them as Y! and ? or O and B. 
Very rich field. 
Star B is a spectroscopic binary. 
The primary is an infra-red source. 
First measure 36.2" @ 311. 
I rated this pair a 1.  Great entry, Tim Leese! 
 
 
 
Eddy O'Connor
Star: 1 Pegasus 
Date & Time: 8 -10 p.m local; UT +11. Monday, September 18th 2000 
Seeing: 5-6 <1-10 Seeing Scale (10 best)> 
Transparency: 9. No Moon. Temp 18º C. Windy. 
Location of Site: Terara, New South Wales, Australia, Long.150.38 degrees; 
South 34.52. 
Site Classification: Suburban 
Sky darkness: 4.5 <Limiting magnitude> 
Instrument: 8"  F9 Dobsonian 
Magnification: 72X (25mm Kellner)
This star is neatly tucked away in a corner near the Dolphin  and the Colt . Norton marks it clearly. I noticed a very dark field here and this double gem stands out as a Deep Golden Yellow star with a wide Blue companion. 

Comments: The Observer's Guide suggests a PA of 311 and  agrees with our listed magnitudes and separation. Webb suggests Orange and Blue as the components, or Very Yellow and Orange by an unknown observer. This striking double belongs in the Dressage finalists. 
 
 

 
 
Patrick J. Anway 
Star: 1 Pegasus 
Date & Time: Sept. 17, 2000, 11pm EDT (0300 UT) 
Seeing: 7 <1-10 Seeing Scale (10 best)> 
Location of Site: Munising Michigan USA 
Site Classification: Rural 
Sky darkness: 5.5 (in the holes) <limiting magnitude> 
Sky condition: high clouds, moon rising 
Temperature: 42º F (5º C) 
Telescope: Zeiss 63mm/840mm f/13.3 
Eyepieces: 7mm, 10mm, 16mm, 18mm orthos 

 
 

Using 18mm for 46X, the pair separated nicely into a deep yellow primary and a blue secondary. Smyth says that the primary is "considered variable" and gives pale orange with the secondary of purple. Interesting - this pair does not appear in the discoverer's regular numbering system, but is from an appendix list in Struve's catalogue. 
 
 

 
 
 
 

 
 
Tim Leese
Star: 1 Pegasus 
Date & Time: 18-September-2000 ( 21:15 UT ) 
Seeing: 6-7 <1-10 Seeing Scale (10 best)>  
Location of site: Cheshire. UK 
53° 15' N –2º 33' W  
Site classification: Suburban  
Sky darkness: 3.5 <Limiting magnitude>  
Telescope: 200mm f/6  Newtonian scope  mounted over a Vixen GP mount (manual slow motion). 
Any Quoted PA or SEP using micro guide. 
Magnification: X120, micro guide(X96 and X324). 

 

As soon the sky finally cleared long enough I found 1 Peg using a magnification of X120.  This is the first time I have observed this system which soon lived up to all expectations. 
 
Using X120 the colour of the primary seemed to be a golden yellow with the secondary appearing 
to be a pale blue/purple colour. With the microguide at X96 and X324 I noted 9 measurements following both methods described in Tom's article for S&T July 2000. The second method being the most difficult to master without a drive in RA. 

Taking an average of all the measurements gave: 
PA of the secondary = 312deg ; separation = 36.8sec. 
 
More fine tuning in the separation measurements needed for me I think!! 

After the intense activity taking measurements for 1 Peg a short cruise South and a few minutes East brought me straight to M15, one of my favourite  globular clusters. Not quite as bright and clear as previous observations but impressive all the same. 

 
Ambience: The conditions for this observation and measurements were far from ideal being a typically English damp autumn night with heavy moisture condensing out of the cooling air. Waiting for the cloud covering Pegasus to clear completely some nocturnal wildlife was observed.   Bats were to be seen flying constantly round the area. 
 
A Barn owl ( unfortunately rare these days) flew silently towards me almost landing on the roof of my shed.  No sign of the cat tonight though, must have more sense!! A snuffling sound from a nearby hedgerow turned out to be a hedgehog, on the prowl for slugs and snails I guess!! 
 

 
 
Ilario Melandri
Star: 1 Pegasus 
Date & Time: 2000 September 23 (2045 UT) 
Seeing: 6 <1-10 Seeing Scale (10 best)>  
Location of site: Italy, Ravenna, San Romualdo, Lat 44 32’N Lon 12 08’E 
Elevation: 0 m 
Site classification: Rural  
Sky darkness: 4.5 <Limiting magnitude> 
Temperature: +15C 
Telescope: 150 mm f/15 achromatic refractor (lens by Romano Zen, Venice). 
Magnification: 140x (Plossl 16mm) 
 
The sep. of 36.3” at a distance of 205 light years, gives the distance 
of about 2,280 Astronomical Units, 29 times the diameter of Pluto’s orbit around the Sun. 
 
 
 
 
 
Tom Teague
Star: 1 Pegasus 
Date & Time: 2000 September 23 (2045 UT) 
Seeing: 7 <1-10 Seeing Scale (10 best)>. 
Location of site: Chester, England (53 11 08N; 02 51 39W) 
Site classification: Suburban  
Sky darkness: 3 (thin high cloud) <Limiting magnitude> 
Telescope: 63mm Zeiss Telementor refractor 
Magnification: x53, x84, x140, x210 
  
  
 
I could see the comes at all powers, but only with averted vision.  This is an exquisite double, best seen at low power (x53).  Each increase in magnification seems to diminish its delicacy.  I saw no colour in the comes, but the primary is yellow.  PA estimated at 330. 
 

 

 
 
William L. Schart
Star: 1 Pegasus 
Date & Time: 9/25/00 9:22 pm CDT 
Seeing: 6 <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>  
Telescope: Orion 6" Dob.  
Magnification: 32x, 98x 
  
 
I found this one by pointing my scope in more or less the right location, using Enif and Delphinius for bearings. I then used the finder to locate a bright star; going to the low power EP revealed a double. The primary was a nice yellow, but the secondary was a too faint to tell. I measured the separation at 34" and the PA at 135. 
 
After being cloudy all weekend, and a real gully-washer of a storm yesterday, it was clear, windy, and cool today. I decided to try for some of the pairs in and around Aquarius, which is still somewhat low in the east. This necessitated setting up in my driveway, rather than my back yard. Fortunately, not too many porch lights were on, but I did have to contend with the occasional passing car. The cat seldom ventures out front,  and tonight was no exception. We don't allow the dogs out front as they run off and perhaps run afoul of the dog-catcher. No other wildlife, however, I did see one really strange sight. Something looking rather like some really long, thin, white wings without any body drifted from north to south (terestrial directions) through the part of the sky I was observing. No sound at all, no  flapping of wings, and then it sort of disappeared into a brighter section of sky over town. Really wierd. And no, I haven't been imbibbing tonight! 
 
 
 
Mary Flanagan
Star: 1 Pegasus 
Date & Time: 29 Sep 2000 04:05 UT; 28 Sep 23:05 
Seeing: 7 <1-10 Seeing Scale (10 best)> 
Transparency: 6  (1-10)  
Location of site: Apple Valley MN, USA 
 93d 14m 25s W; 44d 45m 17s N 
Site classification: Suburban   
Sky darkness: 3 <Limiting magnitude>  
Telescope: 8" f/6 Dobsonian 
Magnification: 37x 
 
 
Nice easy pair once I'd fished it out of the haze; primary was creamy orange, and the little secondary looked off-white. 

Olympic commentary: Nice tumbling run when she finally found the mat . . . 
 
Ambience: The warm wind felt like summer, but you can hear the leaves rattling now. It won't be long before the star-eating tree in our yard gives up, unloads its leaves, and lets me have a better look at the south. 
 
 

 

 

 
 
Pino Bandini
Star: 1 Pegasus 
Location of site: Ravenna, Italy 
Date of observations (UT)
Site classification: Urban 
Sky conditions
Seeing: 7 (10 best) 
Temperature: +19C
Limiting visual magnitude: -- 
Telescope: Celestron 8
Magnification: 200x (Plossl 10mm)
 
 
Note: color white of both components.