Any sufficiently advanced technology is indistinguishable from magic.
/ Arthur C. Clarke /



My astronomy sketches. Hover mouse over image for the inverted look. For fainter objects, take a look at the black-on-white original, sometimes it reveals more details.


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By type: open clusters [37] globular clusters [13] diffuse nebulae [2] dark nebulae [0] planetary nebulae [17] variable stars [1] binary stars [15] asterisms [2] galaxies [56] quasars [1] planets [2] minor planets [0] comets [3] Sun [0] Moon [4] other objects [5]
By catalogue: Messier 1-50 [13] Messier 51-110 [13] NGC 1-1000 [5] NGC 1001-2000 [12] NGC 2001-3000 [20] NGC 3001-4000 [11] NGC 4001-5000 [10] NGC 5001-6000 [17] NGC 6001-7000 [22] NGC 7001-7840 [18] IC 1-5386 [1] other catalogues [34] uncataloged [7]
By constellation:



NGC 6960 + NGC 6992 (Diffuse nebula)
Also known as: The Veil Nebula
Right ascension: 20h 50m Declination: 30° 50'
Constellation: Cygnus
Date/time: 2011.08.26 23:30 UT
Equipment: 12" f/5 Newtonian
FoV: ' Magnification and filter(s): 71x + O-III filter(s)
Seeing: 4/10 Transparency: 4/5

This is a mosaic of the full Veil nebula, about 1.5 x 4.5x FoV, done in almost 2 hours, completely finished at the eyepiece including the star-field.

Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Hi-resolution image: [ reversed sketch | original sketch ]

STF 2730 (Binary star)
Also known as: Struve 2730
Right ascension: 20h 52m Declination: 6° 26'
Constellation: Delphinus
Date/time: 2011.08.26 23:00 UT
Equipment: 12" f/5 Newtonian
FoV: 9' Magnification and filter(s): 375x
Seeing: 3/10 Transparency: 4/5

Nice, almost equally bright standard pair. Both is white with the main component having a light touch of yellow. Separation: 3.2", PA: 345°. A: 8.5m, B: 8.6m. SQM reading: 21.24 m/arcsec2, 20°C.

Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Hi-resolution image: [ reversed sketch | original sketch ]

1 Del (Binary star)
Also known as: 1 Delphini
Right ascension: 20h 31m Declination: 10° 57'
Constellation: Delphinus
Date/time: 2011.08.26 22:45 UT
Equipment: 12" f/5 Newtonian
FoV: 9' Magnification and filter(s): 375x
Seeing: 3/10 Transparency: 4/5

Equally bright, extremely close double star. Both component is white with a separation of only 0.9" and PA of 350°. SQM 21.24 m/arcsec2, 20°C.

Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Hi-resolution image: [ reversed sketch | original sketch ]

STF 2735 (Binary star)
Also known as: Struve 2735
Right ascension: 20h 56m Declination: 4° 35'
Constellation: Delphinus
Date/time: 2011.08.26 20:30 UT
Equipment: 12" f/5 Newtonian
FoV: 9' Magnification and filter(s): 375x
Seeing: 3/10 Transparency: 4/5

Splits very nicely, although at 71 it displays no signs of being a binary, but at 250x it splits with a thin slit, however the component B is sometimes still covered by the diffraction spike of component A (to the SE). At 375x this very close binary splits nicely. It shows large difference in brightness. Both is white with A a bit yellowish while B very lightly bluish. I estimate A being 6.5m bright and B 10m. Note that catalogues list B as 7.7m, but I belive visually it's MUCH fainter than that! The estimated separation is 2" with a PA of 295°. SQM reading: 21.19 m/arcsec2, 24°C, windy.

Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Hi-resolution image: [ reversed sketch | original sketch ]

STF 2723 (Binary star)
Also known as: Struve 2723
Right ascension: 20h 45m Declination: 12° 22'
Constellation: Delphinus
Date/time: 2011.08.26 21:00 UT
Equipment: 12" f/5 Newtonian
FoV: 8' Magnification and filter(s): 375x
Seeing: 3/10 Transparency: 4/5

Slightly different close pair. I estimate component A (to the NW) to be 7m bright with B being about 8.5 magnitudes. Both components are white, A with a touch of blue. The estimated separation is 1.2", position angle (PA) being 125°. SQM reading: 21.2 m/arcsec2, 22°C.

Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Hi-resolution image: [ reversed sketch | original sketch ]

Crater Gutenberg (Our Moon)
Also known as: Crater Gutenberg, Rimae Goclenius
Right ascension: h m Declination: ° '
Constellation:
Date/time: 2011.08.17 23:00 UT
Equipment: 12" f/5 Newtonian
FoV: ' Magnification and filter(s): 167x
Seeing: 6/10 Transparency: 2/5

This crater catched my attention because of its weird potato shape. Being near the terminator, half the crater is in a shadow, but it shows plenty of little details especially at 375x : small domes and mountains scattered inside. Below the crater you can see two rimae originated from the nearby crater Goclenius. A spectacular view!

Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Hi-resolution image: [ reversed sketch | original sketch ]

C/2009 P1 Garradd (Comet)
Right ascension: 21h 20m Declination: 13° 55'
Constellation: Pegasus
Date/time: 2011.08.05 20:00 UT
Equipment: 12" f/5 Newtonian
FoV: 38' Magnification and filter(s): 100x
Seeing: 7/10 Transparency: 4/5

Fairly bright comet, with a tail to the SSE and a tiny sharp extension to the S. The sketch displays the comet's position at the beginning of the observation while the crosshairs define the position about 45 minutes later when I finished the sketch. SQM: 21.42, 13°C, bit humid.

Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Hi-resolution image: [ reversed sketch | original sketch ]

M51 + SN 2011dh (Galaxy)
Also known as: Whirlpool galaxy
Right ascension: 13h 30m Declination: 47° 8'
Constellation: Ursa Major
Date/time: 2011.06.21 21:30 UT
Equipment: 12" f/5 Newtonian
FoV: 25' Magnification and filter(s): 167x
Seeing: 6/10 Transparency: 3/5

Today was the Summer solstice, so it's not surprising that even at 11pm the Western horizon is still shining in bluish colour, however at East the hazy patch of the Summer Milkyway is already easily noticeable. The spiral structure of the M51 is readily visible at 71x, surprisingly easy and so is the supernova SN2011dh, which I estimate to be at 12.3m and is located in the middle of a large outer spiral arm towards ESE from the galactic core. At such a high brightness this supernova is possibly one of the brightest for this year, at a very easy position for Northern hemisphere observers also with much smaller scopes.

Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Hi-resolution image: [ reversed sketch | original sketch ]

M82 (Galaxy)
Also known as: Cigar galaxy
Right ascension: 9h 57m Declination: 69° 38'
Constellation: Ursa Major
Date/time: 2011.05.26 23:00 UT
Equipment: 12" f/5 Newtonian
FoV: 11' Magnification and filter(s): 300x
Seeing: 9/10 Transparency: 4/5

A surprisingly excellent seeing calls for a high-magnification study. As Saturn is just below my horizon, I decide to pick a rather complicated structure: the irregular Cigar galaxy of the UMa constellation. Thanks to the 300x power, the FoV is coal black, the galaxy is so bright that it actually ruins my dark adaptation, faint stars sparkling at the edge of averted vision visibility. Too bad, that the galaxy itself is located on a rather light polluted part of my sky, but it still shows plenty of structures. During the observation, I had my second magneto-acoustic meteor experience in my life: this is the phenomenon when you actually hear a swishing or crackling sound at the same time the meteor flares in the atmosphere. The common part in both cases were that I was standing VERY close to a wire mesh fence, and a <0 mag meteor in the zenith, with a definite ionized tail.

Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Hi-resolution image: [ reversed sketch | original sketch ]

NGC 3738 + 3756 (Galaxy)
Right ascension: 11h 37m Declination: 54° 24'
Constellation: Ursa Major
Date/time: 2011.05.06 21:15 UT
Equipment: 12" f/5 Newtonian
FoV: 32' Magnification and filter(s): 100x
Seeing: 5/10 Transparency: 3/5

Two bright but small galaxies are visible in the exepiece. Although the catalogues say that the face-on NGC 3738 is is almost 1 magnitude brighter than the nearly edge-on NGC 3756, visually the later one is clearly a lot brighter. The NGC 3738 is barely brightening near its core, and shows no star-like nucleus. The oval shaped NGC 3756 is almost perfectly even in brightness, displays no brighter parts. I notice that it's a bit asymmetric, the Western side of the ellipse is a bit flatter. SQM reading: 21.19,/arcsec2, 0°C (guess we're having a negative temperature record, where's the global warming?).

Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Hi-resolution image: [ reversed sketch | original sketch ]

NGC 3972 + NGC 3982 + NGC 3990 + NGC 3998 + SN 2011by (Galaxy)
Right ascension: 11h 58m Declination: 55° 16'
Constellation: Ursa Major
Date/time: 2011.05.06 20:30 UT
Equipment: 12" f/5 Newtonian
FoV: 32' Magnification and filter(s): 100x
Seeing: 4/10 Transparency: 3/5

My original plan was to observe the supernova SN 2011by, the newest celebrity in the stellar world. However, as it is located in an area full of spectacular galaxies, I decided to sketch the galactic neighborhood too. The supernova itself is very bright, even brighter than what I expected, and compared to the nearby stars, I estimate a brightness of abour 13.2m! It is by far brighter than the surface of the parent galaxy, NGC 3972. The two large face-on galaxies (3998 and 3982) are the brightest in the FoV, the tiny 3990 is only slightly fainter than these, The 3972 is however very faint, and I cannot detect the nearby 3977 at all. Perhaps I should try again on a night with better seeing. SQM: 21.12m/arcsec2, 2°C.

Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Hi-resolution image: [ reversed sketch | original sketch ]

NGC 4051 (Galaxy)
Right ascension: 12h 4m Declination: 44° 28'
Constellation: Ursa Major
Date/time: 2011.05.02 22:00 UT
Equipment: 12" f/5 Newtonian
FoV: 53' Magnification and filter(s): 71x
Seeing: 4/10 Transparency: 2/5

Nice round galaxy, that is a bit faint, but shows some brighter details (which are in fact parts of its spiral arms) around its tiny star-like core. A bit though object, but located in a relatively easy position with some brighter stars nearby. SQM reading: 21.15m/arcsec2, 5°C, extremely humid: by the time I finish this sketch, I can only barely see the Big Dipper anymore.

Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Hi-resolution image: [ reversed sketch | original sketch ]

NGC 4013 (Galaxy)
Right ascension: 11h 59m Declination: 43° 53'
Constellation: Ursa Major
Date/time: 2011.05.02 21:45 UT
Equipment: 12" f/5 Newtonian
FoV: 30' Magnification and filter(s): 100x
Seeing: 4/10 Transparency: 3/5

A tiny edge-on galaxy with a fake offcentre star-like core. It's fake, because it is actually a foreground star located in our own galaxy, that looks exactly in that direction. I was very surprised when I first noticed that this galaxy has its core out of its geometrical centre, but later studies revealed the answer for this phenomenon. This little gem is located in a very sparse stellar environment which makes it an extremely difficult target. SQM reading: 21.23m/arcsec2, 5°C, very humid.

Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Hi-resolution image: [ reversed sketch | original sketch ]

NGC 3938 (Galaxy)
Right ascension: 11h 53m Declination: 44° 3'
Constellation: Ursa Major
Date/time: 2011.05.02 21:15 UT
Equipment: 12" f/5 Newtonian
FoV: 42' Magnification and filter(s): 71x
Seeing: 4/10 Transparency: 3/5

Large, spectacular galaxy. Perfectly round, shows no sign of a star-like core, although its central region is a bit brighter. It's very faint, but I can observe some brighter details around the core. By checking out photographs today, it's now obvious that these spots are parts of a spiral structure. SQM reading: 21.20m/arcsec2, 5°C, very humid.

Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Hi-resolution image: [ reversed sketch | original sketch ]

NGC 2549 (Galaxy)
Right ascension: 8h 20m Declination: 57° 46'
Constellation: Lynx
Date/time: 2011.05.02 20:30 UT
Equipment: 12" f/5 Newtonian
FoV: 19' Magnification and filter(s): 167x
Seeing: 4/10 Transparency: 3/5

Tiny, almond shaped galaxy with a star-like core that has a brightness of about 13m, around this core a brighter oval central bulge is also visible. The galaxy is elongated in the N-S direction, at a ratio of about 1:5. SQM reading: 20.96m/arcsec2, 6°C, humid air - as it was raining all day yesterday.

Location: Nádasdladány, Hungary
Observer: Ferenc Lovró
Hi-resolution image: [ reversed sketch | original sketch ]
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All text and images are ©opyright of Ferenc Lovró. All rights reserved worldwide.

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M42 + M43 sketch NGC 1976 + NGC 1982 sketch NGC 457 sketch Owl cluster sketch NGC 1807 + NGC 1817 sketch M34 sketch NGC 1039 sketch NGC 1502 sketch NGC 2169 sketch NGC 2281 sketch Cr 116 sketch Trumpler 2 sketch Trumpler 3 + PNG138.1+04.1 sketch Tr 3 sketch M52 + OCL261 sketch NGC 7654 + Czernik 43 (Cz 43) sketch WZ Cas sketch WZ Cassiopeiae sketch NGC 1545 sketch Collinder 49 (Cr 49) sketch NGC 1513 sketch Stock 10 sketch M50 sketch NGC 2323 sketch NGC 1528 sketch NGC 2232 sketch M103 sketch NGC 581 sketch Trumpler 1 sketch Tr 1 sketch Stock 23 sketch Saturn sketch Saturn sketch NGC 2683 sketch M53 sketch NGC 5024 sketch M81 + M82 sketch NGC 3031 + NGC 3034 sketch NGC 2648 sketch M67 sketch NGC 2862 sketch M65 + M66 + NGC 3628 sketch Leo trio, NGC 3623 + NGC 3627 + NGC 3628 sketch King 6 sketch M108 sketch NGC 3556 sketch M97 sketch Owl nebula, NGC 3587 sketch M51 + NGC 5195 sketch NGC 5194 + NGC 5195 sketch NGC 4168 + NGC 4189 + NGC 4193 + NGC 4206 + NGC 4208 + NGC 4216 sketch M106 + NGC 4248 sketch NGC 4258 + NGC 4248 sketch M10 sketch NGC 6254 sketch M12 sketch NGC 6218 sketch M13 sketch NGC 6205 sketch M92 sketch NGC 6341 sketch NGC 6229 sketch Epsilon Lyrae sketch Double double sketch M57 sketch Ring nebula, NGC 6720 sketch M27 sketch Dumbbell nebula, NGC 6853 sketch NGC 6210 sketch Turtle nebula sketch NGC 6543 sketch Cat's eye nebula sketch NGC 5907 sketch Splinter galaxy sketch NGC 5981 + NGC 5982 + NGC 5985 sketch Draco trio sketch NGC 7026 sketch The Cheeseburger nebula sketch M45 + Moon occultation sketch Pleiades, NGC 1432, NGC 1435 sketch NGC 7027 sketch Magic carpet nebula sketch NGC 7008 sketch Fetus nebula sketch NGC 7209 sketch NGC 7217 sketch NGC 7332 + NGC 7339 sketch NGC 2126 sketch Herschel H68-8 sketch NGC 2392 sketch Caldwell C39, Herschel H45-4, Eskimo or Clown Face Nebula sketch NGC 7331 + NGC 7335 sketch NGC 7814 sketch M48 sketch NGC 2548 sketch NGC 7457 sketch NGC 7640 sketch NGC 7662 sketch Blue snowball sketch NGC 1342 sketch NGC 2392 sketch Eskimo nebula, Clown face nebula sketch NGC 3222 + NGC 3226 + NGC 3227 sketch NGC 3344 sketch NGC 2129 sketch NGC 3432 sketch Arp 206 sketch NGC 4565 sketch Needle galaxy sketch NGC 4631 + NGC 4656 sketch Whale galaxy + Hockeystick galaxy, Arp 281 sketch NGC 2683 sketch UFO galaxy sketch NGC 5466 sketch NGC 5529 sketch M3 sketch NGC 5272 sketch Prinz crater + Montes Harbinger sketch Prinz, Krieger C, Vera, Angström, Montes Harbinger, Rimae Prinz sketch NGC 4036 + NGC 4041 sketch NGC 3718 + NGC 3729 sketch Arp 214 sketch NGC 4244 sketch Caldwell C26 sketch NGC 5005 sketch Caldwell C29 sketch NGC 5033 sketch NGC 4866 sketch NGC 4754 + NGC 4762 sketch NGC 6504 sketch NGC 5857 + NGC 5859 sketch NGC 6535 sketch NGC 6517 sketch NGC 6539 sketch NGC 6910 sketch Rocking Horse cluster sketch The Coathanger sketch Collinder 399 (CR 399), Brocchi's cluster sketch NGC 6934 sketch NGC 6503 sketch NGC 6760 sketch NGC 869 + NGC 884 sketch Double Cluster sketch NGC 6804 sketch NGC 7769 + NGC 7770 + NGC 7771 sketch 3C 147 sketch PGC 2355407 sketch NGC 7625 sketch Arp 212 sketch NGC 6891 sketch NGC 7013 sketch Struve 2161 sketch rho Her sketch Struve 2280 sketch 100 Herculis, 100 Her sketch Struve 2232 sketch Struve 2140 sketch Ras Algethi, alpha Herculis, alpha Her sketch Struve 2063 sketch Struve 2727 sketch gamma Delphini, gamma Del sketch Lovro 2 sketch Struve 2878 sketch O. Struve 390 sketch NGC 404 sketch Mirach's ghost sketch NGC 1662 sketch NGC 1662 meteor sketch IC 4593 sketch White Eyed Pea sketch Copernicus crater sketch Copernicus + Fauth + Gay-Lussac sketch M44 sketch NGC 2632 sketch NGC 1023 sketch C/2009 K5 (McNaught) sketch Comet McNaught K5 sketch Hickson 68 sketch NGC 5350 + NGC 5353 + NGC 5354 + NGC 5355 sketch C/2009 K5 (McNaught) sketch NGC 5899 sketch NGC 5689 sketch NGC 5707 sketch NGC 5905 + NGC 5908 sketch NGC 6015 sketch NGC 6572 sketch Blue Racquetball sketch NGC 5987 sketch NGC 5963 + NGC 5965 sketch NGC 7160 sketch NGC 7235 sketch NGC 7354 sketch η Cas sketch Eta Cassiopeiae sketch NGC 770 + NGC 772 sketch γ Ari sketch Gamma Arietis, Mesarthim sketch NGC 2655 + SN2011B sketch NGC 2215 sketch M1 sketch Crab nebula, NGC 1952 sketch NGC 2420 sketch NGC 2355 sketch NGC 2331 sketch NGC 2549 sketch NGC 3938 sketch NGC 4051 sketch NGC 4013 sketch NGC 3972 + NGC 3982 + NGC 3990 + NGC 3998 + SN 2011by sketch NGC 3738 + 3756 sketch M82 sketch Cigar galaxy sketch M51 + SN 2011dh sketch Whirlpool galaxy sketch C/2009 P1 Garradd sketch Crater Gutenberg sketch Crater Gutenberg, Rimae Goclenius sketch STF 2723 sketch Struve 2723 sketch STF 2735 sketch Struve 2735 sketch 1 Del sketch 1 Delphini sketch STF 2730 sketch Struve 2730 sketch NGC 6960 + NGC 6992 sketch The Veil Nebula sketch