| Craig M. Carver | ||||
| Star:
59 Orionis
Date & Time: 11/27/98 2320 LT Seeing: 5 <1-10 Seeing Scale (10 best)> Location of site: Randalman, NC (Lat 36.07, Long 79.79, Elev. 500 ft) Site classification: Rural Sky darkness: 5.1-5.3 <Limiting magnitude> Telescope: 6" Maksutov Magnification: 95x |
A white star with a faint (approx mag 10) companion. Both are optically paired with another star of mag 7 about 3' away. | |||
| William L. Schart | ||||
| Star:
59 Orionis
Date & Time: 1/6/99 8:40 pm CST Seeing: 8 <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 Star: 59 Orionis Date & Time: 2/2/2000, 9:57 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> Telescope: Orion 6" Dob. Magnification: 48x, 72x, 98x |
Located by
star hopping from Alpha Ori. Easily identified as it a relatively bright
and quite widely spaced. Measured PA of 290 degrees and sepearation of
2' 52". Both stars appeared yellowish-white to me.
Forms a Y-shaped asterism with 3 other stars, including 60 Ori. At first this appeared as a very wide spaced double, but at 98x I detected a very faint companion which turned out to be the true secondary. (What appears to be the bright companion is SAO 113311.) Its faintness made measurements difficult, as when close to the lines in my reticle EP, the illumination all but drowned it out. I resorted to trying to line it up at a distince from the reference line, and obtained a PA of 222d, but this is pretty shakey. Separation 40”. Once I had found this faint star, I could clearly split it in the 48x Ep
|
|||
| Chuck Layton | ||||
| Star:
59 Orionis
Date of Observation: Jan. 11, 1999 Time of Observation: 0730 UT Seeing (1 - 10, 10 best): 5 Site classification: Suburban Limiting Mag. (naked eye): 4.8 Magnifications Used: 76X Instrument Used: 20cm f/6 Eq. Newtonian |
Observed Colorations of
Components: Primary - bright yellow, come - white.
Other comments: Wide pair. Bright yellow primary is pleasing.
|
|||
| Dave Mitsky | ||||
| Star:
59 Orionis
Date & Time: 1/27/99 05:50 UT Seeing: 6 <1-10 Seeing Scale (10 best)> Transparency: ~ 6 Location of site: ASH Naylor Observatory (http://www.msd.org/obs.htm) near Lewisberry, PA Site classification: Rural Sky darkness: < 5.0 <Limiting magnitude> moonlight Telescope: 17" f/15 classical Cassegrain Magnification: 118x, 202x |
A wide (36.5") double which
was easily split with the 5" f/5 finderscope. The primary is a 6th
magnitude A5 star; the comes is 9.5 magnitude at a position
angle of 204 degrees.
|
|||
| Ilario Melandri | ||||
| Star:
59 Orionis
Date & Time: 13/Dec/1999 – 19.16 UTC Seeing: 3 <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: 5.5 <Limiting magnitude> Temperature: +2C Telescope: 150 mm f/15 achromatic refractor Magnification: 140 x (eyepiece Plossl Clavé 16 mm) |
|
|||
| Randall Heckman | ||||
| Star:
59 Orionis
Date & Time: 12/31/99 AT 2:30 UT Seeing: 4 Location of Site: Heckman Observatory 40 37' 10" N and 99 03' 50" W Site Classification: Rural Sky Darkness (Limiting Magnitude): 5 Telescope: 8" Orion Dob Magnification: 70x
|
Separation (Clear or Toughing):
Clear
Magnitude Comment: The secondary was much dimmer and was at the limit of my averted vision. Color Comment: White General Comment: The secondary was really dim. It would seem that at magnitude 9.7 the secondary should be easier to see.
|
|||
| Richard Harshaw | ||||
| Star:
59 Orionis [H V 100; V1004 Ori; ADS 4555]
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): 0245 on 12/31/99 Site classification: suburban Sky conditions: seeing-- 7 out of 10 transparency-- 8 out of 10 limiting visual magnitude-- 5 Temperature: 43 F Telescope: Celestron C-8 Eyepiece: Micro-Guide (160x) |
I made five
sets of measurements with the Micro-Guide illuminated reticule eyepiece
and got an average of 37" at PA 206. (If you want the measurements themselves,
reply to this posting.) The companion was very difficult to measure against
the soft glow of the reticule.
I noted colors of White and ??. The system is 353 light years away and thus about 37 times brighter than the Sun. Star A is a spectroscopic binary with a 2.7405 day period and is also a Delta Scuti variable. Measurements from 1984:
|
|||
| Philippe de Jocas | ||||
| Star:
59 Orionis
Date & Time: January 22, 1h00-7h300 UT Seeing: 3-4 <1-10 Seeing Scale (10 best)>. Location of site: Ottawa/Hull, Canada Site classification: Suburban Sky darkness: 4.5 <Limiting magnitude> Temperature: -25C Telescope: 6" f5 newtonian Magnification: 90x |
I did it at 90x but it took averted vision to locate the companion;once that was done I was able to hold it steady. | |||
| Jim Brownfield | ||||
| Star:
59 Orionis
Date & Time: 26/01/2000, 6:30 p.m.- 11:30 p.m. EST Seeing: 3 – 5 (improving) <1-10 Seeing Scale (10 best)>. Location of site: Huntsburg, Ohio, USA Site classification: Suburban Sky darkness: 6 mag., could see ST 855, going to 5th mag. star Rho <Limiting magnitude> Other observing conditions: 83% humidity, 16 degrees F. with 12" snow on ground going to 84% humidity, 4 degrees F. Telescope: 13.1"/F4.5 Dobsonian, with 5" aperture mask for the brighter pairs Magnification: 47x |
split at 47x | |||
| John M. Ryan | ||||
| Star:
59 Orionis
Date of Observation: 30/01/00 22:15UT Location of Observation: Ciudad Rodrigo, Salamanca, Spain 40º 36' N, 6º 32'W, Elev. 800 Meters Seeing: 7 to 8. Best so far this new year based on the Luis Arguelles method (0 - 10, 10 best) Site classification: Urban Limiting Mag. (naked eye): 5 Instrument: Meade 8"SCT Magnification: 80x, 167x |
Separation (Clear or Touching):Clear
Split
Magnitude Comment:Bright and very dim components in accordance with the data. Color Comment: Both components tend to be white General Comment:After 52 Ori this was a relief to split an easy one again. At first I noted an equal magnitude star just to the west but the distance according to the data was too much, I then noticed the dimmer component just SSW of the main component. The dim component was about at an angle of 190º based on eye sight which was close to the listed angle of 204º. Will have to get into the microquide and angular measurements as soon as possible. |
|||
| Jay Zimmerman | ||||
| Star:
59 Orionis
Date & Time: 02/09/2000, 0240 Seeing: 6 <1-10 Seeing Scale (10 best)> Location of Site: Carbondale, IL, USA Site Classification: Suburban/near rural Temperature: 28°F (-2.22°C) Sky darkness: 5.1 <Limiting magnitude> Telescope: 97mm, f7 apo Magnification: 80x |
80x was needed
(with AV) to see the secondary, not to split the star. I could only see
the secondary with direct vision by booting the magnification to 192x.
This was not a good night for viewing low magnitude stars - a lot of turbulence
up there! Colors: A = white; B =
?.
|
|||
| Bill Becker | ||||
| Star:
59 Orionis
Location of site: Casper, Wyoming Elev. 5200' Date of observations: Feb 16 2000, 3:55 UT Site classification: Suburban Sky conditions: Seeing: 7 Magnitude limit (naked eye): 4.0, Moonlight Telescope: Quantum 4 Maksutov Magnification: 85x |
Easy split,
primary seen a pale yellow leaning to white, no colour noted in secondary.
|
|||
| Francisco Manuel Rica | ||||
| Star:
59 Orionis
Date & Time: Several dates Seeing: --- <1-10 Seeing Scale (10 best)> Location of site: Extremadura, Spain Site classification: Suburban Sky darkness: --- <Limiting magnitude> Telescope: In some measurements, S/C 13" with CCD ST 7 Magnification: --- |
59 Ori
has been officially measured in 5 occasions.
These measurements was take between 1.878 and 1.984. (see Table II) "A" COMPONENT
"B" COMPONENT
MY MEASUREMENTS
I have made 5 measurements
(see Table I). Three of them was obtained by
59 Ori: AP at about 205 degree at XX century, and
My most recent measurements Table I. Measurements
of 59 Ori
Table II. Offical Measurements
of 59 Ori
PHOTOMETRY
I made V photometry
and differential photometry of 59 Ori B. The bright
Table III. Photometry
Study of 59 Ori B
No variation of bright
was detected.
WHAT TYPE OF DOUBLE
STAR COULD 59 Ori COULD BE?
According to Tycho
catalog A member is a A5m star with +0.7 absolute
We know that the difference
between A and B aparent magnitud is 4.5
|
|||
| John Clemmer | ||||
| Star:59
Orionis
Date & Time: March 6/2000 1930 EST Seeing: 7, quite steady <1-10 Seeing Scale (10 best)> Location of site: Priceville, Ontario, Canada W80 41'41" N44 10' 40" Site classification: Rural Sky darkness: 6+/10ths 5th mag. if I'm lucky tonight <Limiting magnitude> Telescope: Televue Pronto Magnification: 12x
|
40mm 12x | |||
| G.E.O.D.A Group | ||||
| Star:
59 Orionis
Date & Time: 11-III-2000, 18.30-21.30 UT Seeing: 7 <1-10 Seeing Scale (10 best)> Location of Site: Manises, Valencia, Spain. GPS coordinates: 39º 29' 36" N, 00º 27' 56" W. Site Classification: Urban-Suburban Sky darkness: 3 <Limiting magnitude> Telescope: Meade 10" LX-200 SCT Magnification: 200x |
Published measures
are the mean of two observations made from two different observers.
d = 43.8; PA = 207
|
|||