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Epsilon Lyrae (Binary star)
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Also known as: Double double
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Right ascension: 18h 44m
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Declination: 39° 40'
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Constellation: Lyra
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Date/time: 2008.06.10 22:00 UT
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Equipment: 12" f/5 Newtonian
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FoV: 9'
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Magnification and filter(s): 250x
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Seeing: 7/10
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Transparency: 4/5
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Probably the most observed multiple star system, located in an easy position in Lyra near the bright star Vega. The double can be split even with better binoculars, however the real magic happens with larger telescopes as under good conditions, they will split the double into a "double double"! At 71x I was unable to split the pairs, however at 167x and 250x I had success. A very spectacular object, worth giving a try!
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Location: Nádasdladány, Hungary
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Observer: Ferenc Lovró
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Hi-resolution image: [ reversed sketch | original sketch ]
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Struve 2161 (Binary star)
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Also known as: rho Her
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Right ascension: 17h 24m
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Declination: 39° 9'
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Constellation: Hercules
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Date/time: 2009.09.05 18:30 UT
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Equipment: 12" f/5 Newtonian
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FoV: 21'
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Magnification and filter(s): 167x
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Seeing: 6/10
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Transparency: 3/5
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The component A is estimated at 4.6m with white colour, component B at 5.5m and looks like it has a touch of blue in it. At 71x they are only separated if the seeing permits. At 167x they are perfectly separated, B looks definitely fainter. Separation is estimated at 4.1" with a position angle (PA) of 315°.
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Location: Nádasdladány, Hungary
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Observer: Ferenc Lovró
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Hi-resolution image: [ reversed sketch | original sketch ]
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Struve 2280 (Binary star)
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Also known as: 100 Herculis, 100 Her
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Right ascension: 18h 8m
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Declination: 26° 6'
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Constellation: Hercules
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Date/time: 2009.09.05 19:00 UT
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Equipment: 12" f/5 Newtonian
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FoV: 14'
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Magnification and filter(s): 167x
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Seeing: 5/10
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Transparency: 3/5
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Wide pair, nearly identical in colour and brightness, although the component A looks a little bit brighter. They are both a little bit bluish, sometimes I even detect a little orange in component B. A: 5.9m, B: 6.0m, A-B: 14", PA: 183°.
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Location: Nádasdladány, Hungary
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Observer: Ferenc Lovró
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Hi-resolution image: [ reversed sketch | original sketch ]
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Struve 2232 (Binary star)
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Right ascension: 17h 50m
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Declination: 25° 17'
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Constellation: Hercules
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Date/time: 2009.09.06 19:00 UT
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Equipment: 12" f/5 Newtonian
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FoV: 18'
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Magnification and filter(s): 167x
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Seeing: 6/10
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Transparency: 3/5
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Splits up easily at 71x, although looks much better at 167x. A nice pair with different colour and brightness. A-B: 6", PA: 140°. A very spectacular pair.
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Location: Nádasdladány, Hungary
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Observer: Ferenc Lovró
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Hi-resolution image: [ reversed sketch | original sketch ]
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Struve 2140 (Binary star)
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Also known as: Ras Algethi, alpha Herculis, alpha Her
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Right ascension: 17h 15m
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Declination: 14° 23'
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Constellation: Hercules
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Date/time: 2009.09.06 19:15 UT
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Equipment: 12" f/5 Newtonian
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FoV: 19'
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Magnification and filter(s): 167x
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Seeing: 6/10
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Transparency: 3/5
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A nice bright pair, A is definitely orange and at least 2 magnitudes brighter than B, which looks white/yellow. A: 3.5m, B: 5.4m, A-B: 4.7" PA: 105°. Component D is much fainter and looks perfectly white, with 11m, A-D: 90", PA: 40°.
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Location: Nádasdladány, Hungary
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Observer: Ferenc Lovró
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Hi-resolution image: [ reversed sketch | original sketch ]
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Struve 2063 (Binary star)
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Right ascension: 16h 32m
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Declination: 45° 36'
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Constellation: Hercules
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Date/time: 2009.09.06 19:30 UT
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Equipment: 12" f/5 Newtonian
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FoV: 15'
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Magnification and filter(s): 167x
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Seeing: 6/10
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Transparency: 3/5
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A bright wide pair with a separation of at least 12". B is much fainter and has a little tint of orange in it. A is perfectly white.
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Location: Nádasdladány, Hungary
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Observer: Ferenc Lovró
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Hi-resolution image: [ reversed sketch | original sketch ]
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Struve 2727 (Binary star)
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Also known as: gamma Delphini, gamma Del
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Right ascension: 20h 47m
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Declination: 16° 7'
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Constellation: Delphinus
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Date/time: 2009.09.06 19:45 UT
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Equipment: 12" f/5 Newtonian
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FoV: 15'
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Magnification and filter(s): 167x
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Seeing: 6/10
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Transparency: 3/5
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A rather standard pair with different colour and brightness. The catalogues list only 1 magnitude difference in that, but actually it looks much more to me. The fainter component is a bit pastel greenish. A: 4.5m, gold colour, B: 5.4m, green. A-B: 9.2", PA: 270°.
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Location: Nádasdladány, Hungary
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Observer: Ferenc Lovró
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Hi-resolution image: [ reversed sketch | original sketch ]
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Struve 2878 (Binary star)
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Right ascension: 22h 14m
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Declination: 7° 59'
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Constellation: Pegasus
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Date/time: 2009.09.16 23:30 UT
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Equipment: 12" f/5 Newtonian
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FoV: 12'
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Magnification and filter(s): 250x
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Seeing: 6/10
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Transparency: 3/5
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A: white, 7m. B: a bit bluish, 8.1m. C: 10m. D: 11m. A-B does not split until 250x is used, but perhaps better seeing or greater magnification is required. A-B: 1.4", PA: 120°. A-C: 1', PA: 120°. A-D: 2', PA: 270°.
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Location: Nádasdladány, Hungary
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Observer: Ferenc Lovró
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Hi-resolution image: [ reversed sketch | original sketch ]
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O. Struve 390 (Binary star)
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Right ascension: 19h 55m
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Declination: 30° 12'
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Constellation: Cygnus
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Date/time: 2009.10.03 18:30 UT
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Equipment: 12" f/5 Newtonian
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FoV: 10'
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Magnification and filter(s): 250x
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Seeing: 4/10
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Transparency: 2/5
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Component A is the brightes part of of the trio by far. They split up easily even at 71x. A: 6.5m, white. B: 9.5m, slightly bluish. C: 11m. A-B: 10", PA: 20°. A-C: 16", PA: 170°. SQM reading: 18.33m/arcsec^2 (full moon!), 6°C.
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Location: Nádasdladány, Hungary
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Observer: Ferenc Lovró
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Hi-resolution image: [ reversed sketch | original sketch ]
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Guestbook
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Date of entry: 12/30/09 15:22:47
Your name: Müller Dániel (K.)
Your comment:
Szia! Nagyon jók a rajzok! Gratula hozzájuk, csodállak :).
Üdv, tiszta, szép, nyugodt egeket!- Dani
Where are you from? Szabadszállás, Hungary
How did you know about my website? Makszutov.hu fórum :)
Date of entry: 07/06/08 15:01:16
Your name: Demelza Ramakers
Your comment:
I really love you're sketches! They are amazing! Keep up the good work!
Clear Skies!
Demelza Ramakers
http://d.ramakers.googlepages.com/home
Where are you from? Holland
How did you know about my website? Cloudy Nights
Date of entry: 05/03/08 16:12:34
Your name: Faith J
Your comment:
Superb sketches, Ferenc, absolutely brilliant. I love the mouse-over effect, too.
http://visualdeepsky.webs.com
Where are you from? England
How did you know about my website? From Cloudy Nights forums
Date of entry: 04/14/08 06:20:04
Your name: Laurie
Your comment:
Awesome sketches! I love it! I was curious what size and what kind of eyepiece were you using with each sketch? I do see the magnification power with each sketch. Thanks - let me know, email address
laurie-wilmot hotmail.com
Where are you from? State of Colorado in the USA
How did you know about my website? Cloudy Nights
Date of entry: 04/11/08 07:05:02
Your name: Ferenc Lovró
Your comment:
Feel free to post your comments here. Criticism is welcome, however spam, html, ads, bad words are not tolerated.
Clear skies!
Where are you from? Nádasdladány, Hungary
How did you know about my website? Actually, I'm the owner of it. :)
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Please sign my guestbook (no html, no website addresses, no spam, no bad words, no ads, breaking these rules result in a permanent ban (don't worry, I regularly check the submitted but banned entries, and reset your access if the ban seems unreasonable), and yellow fields are mandatory):
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