107 Aquarius 

 
Richard Harshaw
Star: 107 Aquarius 
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:  2346-1840 
Magnitudes:  5.7, 6.7 
Sep/PA's:  6+ / 130 -! 
Year of last measurement:  1975 
Distance (light years):  212 
Luminosity (in suns):  26 
Eyepiece and magnification:  20mm (104x) 
Colors noted:  W and W.  But Webb:  W or Y and B.   Dembowksi:  W, W.  See:  R, B.  Franks (1916):  Y, L.  Piazzi Smyth thought the colors were variable over time. 

A tight pair, and one of my favorites, but sadly placed in a lonely field. 
The orbit probably takes about 11,800 years. 
I would rate this pair about 2 on a scale of 1 (superb) to 5 (dismal). 

 
 
Eddy O'Connor
Star: 107 Aquarius 
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 fun to find , located  in a Sagitta look-a-like Asterism  found in most maps of Aquarius. Norton shows it clearly and notes its retrograde motion and magnitudes of 5.3 and 6.5. 

Comments: This star is well placed for southern viewers and Hartung describes the components as 'Pale and Deeper Yellow' and suitable for a 7 cm objective. I found the colours Whitish green and Bluish and an easy object and a worthy Olympic Aquarium  Star. 
 
 
 
 
Tim Leese
Star: 107 Aquarius 
Date & Time: 20-September-2000 (23:00 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 

 

 This was a difficult observation for me as a damson tree, located in my neighbours garden, obscured the view.  Persistance prevailed as I spotted the star drift into view through a gap in the branch tops!! Eventually, using a magnification of X120, I observed a fine pair of stars. I detected a white colour in the primary and an off white or yellow/white colour in the secondary. Relocation of the telescope will be required to view this double again but it will be well worth another look in the near future! 
 
 

 
 

 
 
 
 
Ilario Melandri
Star: 107 Aquarius 
Date & Time: 21/09/2000 – 23.37 UT 
Seeing: 4 <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: 5 <Limiting magnitude> 
Temperature: +13C 
Telescope: 150 mm f/15 achromatic refractor (lens by Romano Zen, Venice). 
Magnification: 140x (Plossl 16mm) 
 		 The separation is 6.6” and distance 140 light years. 
 
The distance between the two components corresponds at about 283 Astronomical Units, about 3.6 times the diameter of Pluto’s orbit around 
the Sun. 
 
 
 
 
 
Patrick J. Anway 
Star: 107 Aquarius 
Date & Time: Sept. 24, 2000, 11pm EDT (03:00 UT) 
Seeing: 6 <1-10 Seeing Scale (10 best)> 
Location of Site: Munising Michigan USA 
Site Classification: Rural 
Sky darkness: 6 <limiting magnitude> 
Sky condition: a few high clouds, no moon 
Temperature: 34deg F (2deg C) 
Telescope: Vixen 102mm f/9.8 
Eyepieces: 6mm, 9mm, 18mm orthos 
 

 

 Using the 9mm for 111X it separated into a very nice pair. Colors were more apparent with the 6mm at 167X and were blue-white and peach. Flammarion gave the colors "white and crimson", however Smyth saw them as "white and blue". 
 
Discovered in August 1780 by William Herschel and in 1832 Smyth determined by comparing Herschel's, Piazzi's and his measurements that it had a retrograde motion and was increasing in distance. Though I had some trouble locating it at first, the view was well worth the effort. It was quickly added to my list of favorites. 
 
 
 
 
William L. Schart
Star: 107 Aquarius
Date & Time: 9/30/00 midnight CDT  
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>  
Telescope: Orion 6" Dob.  
Magnification: 32x, 72x, 98x
 
  
  		 Again, I pointed the scope in more or less the right direction, using Fomalhaut and Pegasus for bearings, then in the low power EP the rather distinctive chain of stars that this is a member of was fairly easy to locate. This is the second from the end. I did not split it until I got to 120x. I then switched to the Microguide to measure. Separation was 8” and the PA 142. I made the colors to be yellow. 

I attempted several other pairs, but couldn't come up with anything. Either too faint and/or tight to recognize and split.