Chances are, when we meet intelligent life forms in outer space, they're going to be descended from predators.
/ Michio Kaku /



In memoriam Halton C. Arp (1927-2013).


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.


NEW! Click here to contact me.

J! Amennyiben elrhet, a ikonra kattintva magyarul is olvashatod az szlelst.


Show me the newest sketches!
By type: open clusters [56] globular clusters [14] diffuse nebulae [3] dark nebulae [0] planetary nebulae [22] variable stars [17] binary stars [22] asterisms [2] galaxies [83] quasars [1] planets [2] minor planets [1] comets [4] Sun [0] Moon [4] other objects [7]
By catalogue: Messier 1-50 [20] Messier 51-110 [18] NGC 1-1000 [9] NGC 1001-2000 [16] NGC 2001-3000 [29] NGC 3001-4000 [19] NGC 4001-5000 [18] NGC 5001-6000 [19] NGC 6001-7000 [29] NGC 7001-7840 [21] IC 1-5386 [1] other catalogues [62] uncataloged [9] [22]
By constellation:



NGC 6811 (Open cluster)
Right ascension: 19h 37m Declination: 46 25'
Constellation: Cygnus
Date/time: 2014.08.17 22:45 UT
Equipment: 12" f/5 Newtonian
FoV: 37' Magnification and filter(s): 100x
Seeing: 5/10 Transparency: 3/5
SQM: 20.90 m/as2 Temperature: 9C
Humidity: moderate Wind: none
Sight: 4 - lots of details, very interesting, unique look
Difficulty: 3 - moderately visible, dark adaptation needed, averted vision might add to details
Position: 3 - moderate, some starhopping needed
Location: Ndasdladny, Hungary
Observer: Ferenc Lovr
Description:

Middle-sized open cluster, nicely separating from its background, which looks grainy because of the miriads of unseen Milkyway stars. This rich object contains several tentacles of stars. To the West of this OC I see an asterism of bright stars, one of its members can be seen on the topmost part of the sketch.


Hi-resolution image: [ reversed sketch | original sketch ]

NGC 4085 + NGC 4088 (Galaxy)
Also known as: Arp 18
Right ascension: 12h 06m Declination: 50 28'
Constellation: Ursa Major
Date/time: 2014.05.23 23:30 UT
Equipment: 12" f/5 Newtonian
FoV: 35' Magnification and filter(s): 100x
Seeing: 6/10 Transparency: 4/5
SQM: 21.08 m/as2 Temperature: 13C
Humidity: low Wind: none
Sight: 3 - definite details, interesting look
Difficulty: 5 - almost invisible, total dark adaptation, very dark skies and averted vision is a must to see the object
Position: 3 - moderate, some starhopping needed
Location: Ndasdladny, Hungary
Observer: Ferenc Lovr
Description:

A very interesting interacting pair, also listed as nr. 18 in Halton Arp's famous catalogue of peculiar galaxies. Based on my map I expect a couple nearly equal in size and brightness, however this is not the case at all. I've even missed NGC 4085 for my first tries, while the larger NGC 4088 is brightly rules the FoV. I return to this object many times during the evening, because I'm so upset by not seeing NGC 4085, however when I first glimpse this object, it's etremely faint and tiny. The larger NGC 4088 does not display details, looks quite homogeneous, elliptical. I gave a score of 5 on the difficulty only because of the tricky appearance of NGC 4085.


Hi-resolution image: [ reversed sketch | original sketch ]

NGC 4449 (Galaxy)
Also known as: Caldwell 21
Right ascension: 12h 29m Declination: 44 01'
Constellation: Canes Venatici
Date/time: 2014.05.23 23:00 UT
Equipment: 12" f/5 Newtonian
FoV: 27' Magnification and filter(s): 167x
Seeing: 6/10 Transparency: 3/5
SQM: 21.14 m/as2 Temperature: 14C
Humidity: dry Wind: breeze
Sight: 4 - lots of details, very interesting, unique look
Difficulty: 3 - moderately visible, dark adaptation needed, averted vision might add to details
Position: 3 - moderate, some starhopping needed
Location: Ndasdladny, Hungary
Observer: Ferenc Lovr
Description:

For the first view it looks like a simple oval galaxy, however with an in-depth observation I start to see very confusing details: to the East of its nucleus a little tail seems to break out, both side of the core displays dense fuzzy knots, and last but not least, I suspect a very faint spot to the North, just outside the body of the galaxy.

Checking the astrophotos of this galaxy later leaves me shocked: the irregular object has a really chaotic inside, no wonder I've seen so many details!


Hi-resolution image: [ reversed sketch | original sketch ]

NGC 4100 (Galaxy)
Right ascension: 12h 07m Declination: 49 30'
Constellation: Ursa Major
Date/time: 2014.05.23 22:30 UT
Equipment: 12" f/5 Newtonian
FoV: 25' Magnification and filter(s): 167x
Seeing: 6/10 Transparency: 3/5
SQM: 21.11 m/as2 Temperature: 13C
Humidity: dry Wind: none
Sight: 2 - minor details, somewhat interesting
Difficulty: 4 - hardly visible, dark adaptation and very dark skies needed, averted vision is required to see details
Position: 3 - moderate, some starhopping needed
Location: Ndasdladny, Hungary
Observer: Ferenc Lovr
Description:

Faint galaxy with a N-S elongation and a very nice oval shape that's no too flat, but looks a bit like a cigar. Its Northern side appears a bit brighter. Situated in a nice stellar neighborhood.


Hi-resolution image: [ reversed sketch | original sketch ]

NGC 4157 (Galaxy)
Right ascension: 12h 12m Declination: 50 24'
Constellation: Ursa Major
Date/time: 2014.05.23 22:00 UT
Equipment: 12" f/5 Newtonian
FoV: 28' Magnification and filter(s): 167x
Seeing: 7/10 Transparency: 3/5
SQM: 21.18 m/as2 Temperature: 13C
Humidity: dry Wind: none
Sight: 3 - definite details, interesting look
Difficulty: 3 - moderately visible, dark adaptation needed, averted vision might add to details
Position: 4 - hard, complex starhopping needed
Location: Ndasdladny, Hungary
Observer: Ferenc Lovr
Description:

A very nice example of edge-on galaxies in a very nice field of stars. It's nucleus is only slightly brighter, a bit stellar looking. Not an easy object, using averted vision its size grows apparently.


Hi-resolution image: [ reversed sketch | original sketch ]

NGC 4485 + NGC 4490 (Galaxy)
Also known as: Arp 269, Cocoon Galaxy
Right ascension: 12h 31m Declination: 41 37'
Constellation: Canes Venatici
Date/time: 2014.05.23 21:40 UT
Equipment: 12" f/5 Newtonian
FoV: 32' Magnification and filter(s): 100x
Seeing: 7/10 Transparency: 3/5
SQM: 21.18 m/as2 Temperature: 15C
Humidity: low Wind: none
Sight: 4 - lots of details, very interesting, unique look
Difficulty: 3 - moderately visible, dark adaptation needed, averted vision might add to details
Position: 2 - easy, bright star nearby
Location: Ndasdladny, Hungary
Observer: Ferenc Lovr
Description:

A very spectacular pair of galaxies, also listed in Halton Arp's Atlas of Peculiar Galaxies with number 269. NGC 4490 (the larger galaxy) displays details instantly, and by increasing the power two spiral arms become apparent, departing the round central area to the East and West. The Southern side of the galaxy looks more round while the Northern looks more flat. It's minor companion, the NGC 4485 is round, however it shows a slightly brighter Northern side.

Like always, I did not study this object before my observation, so I was very happy to see how much resemblance my sketch has with the astrophotos I've seen later.


Hi-resolution image: [ reversed sketch | original sketch ]

Mu UMa (TVICS)
Also known as: Mu Ursae Majoris, Tania Australis
Right ascension: 10h 23m Declination: 41 26'
Constellation: Ursa Major
Date/time: 2014.05.23 21:00 UT
Equipment: 12" f/5 Newtonian
FoV: 12' Magnification and filter(s): 250x
Seeing: 7/10 Transparency: 3/5
SQM: 21.14 m/as2 Temperature: 14C
Humidity: low Wind: none
Sight: 4 - lots of details, very interesting, unique look
Difficulty: 1 - instantly visible, no dark adaptation or averted vision needed
Position: 1 - very easy, many bright stars nearby
Location: Ndasdladny, Hungary
Observer: Ferenc Lovr
Description:

Interesting, but Mu UMa was in front of me all these years, yet I've never noticed its fantastic colour. It responds to changing magnifications in a very interesting way, and this seem to support my theory that you can see stellar colours much easier with a non-dark adapted eye: with naked eye it's orange, at 71x it is golden, and at 250x it's white. The sketch displays the hue at 71x.


Hi-resolution image: [ reversed sketch | original sketch ]

NGC 3941 (Galaxy)
Right ascension: 11h 54m Declination: 36 54'
Constellation: Ursa Major
Date/time: 2014.03.29 22:25 UT
Equipment: 12" f/5 Newtonian
FoV: 25' Magnification and filter(s): 167x
Seeing: 2/10 Transparency: 3/5
SQM: 21.22 m/as2
Humidity: low Wind: none
Sight: 3 - definite details, interesting look
Difficulty: 3 - moderately visible, dark adaptation needed, averted vision might add to details
Position: 4 - hard, complex starhopping needed
Location: Ndasdladny, Hungary
Observer: Ferenc Lovr
Description:

Small, faint oval with a N-S elongation, although its real shape mostly appears with averted vision only. Its core is really spectacular with its tiny, bright, disk shape. To the North and South of this object lots of bright stars appear, but interestingly the FoV is still almost empty at this magnification.


Hi-resolution image: [ reversed sketch | original sketch ]

NGC 3294 (Galaxy)
Right ascension: 10h 37m Declination: 37 15'
Constellation: Leo Minor
Date/time: 2014.03.29 22:00 UT
Equipment: 12" f/5 Newtonian
FoV: 23' Magnification and filter(s): 167x
Seeing: 3/10 Transparency: 2/5
SQM: 21.23 m/as2 Temperature: 1C
Humidity: low Wind: breeze
Sight: 2 - minor details, somewhat interesting
Difficulty: 3 - moderately visible, dark adaptation needed, averted vision might add to details
Position: 3 - moderate, some starhopping needed
Location: Ndasdladny, Hungary
Observer: Ferenc Lovr
Description:

Moderate sized, relatively faint galaxy elongated in the NW-SE direction. It has a wide body with a very smooth brightness throughout the entire surface. It responds really well to averted vision.


Hi-resolution image: [ reversed sketch | original sketch ]

NGC 3021 (Galaxy)
Right ascension: 9h 52m Declination: 33 29'
Constellation: Leo Minor
Date/time: 2014.03.29 21:30 UT
Equipment: 12" f/5 Newtonian
FoV: 26' Magnification and filter(s): 167x
Seeing: 3/10 Transparency: 3/5
SQM: 21.32 m/as2 Temperature: 3C
Humidity: low Wind: none
Sight: 2 - minor details, somewhat interesting
Difficulty: 3 - moderately visible, dark adaptation needed, averted vision might add to details
Position: 3 - moderate, some starhopping needed
Location: Ndasdladny, Hungary
Observer: Ferenc Lovr
Description:

Brighter than its nearby companion, the NGC 3003 galaxy, but it is very tiny. It has an almost perfectly circular shape, except that especially with averted vision its Western side seem to grow, making the galaxy look like a raindrop. Beside this feature it shows no details, although the FoV itself is interesting with the foreground star to the SE very close to the galaxy.


Hi-resolution image: [ reversed sketch | original sketch ]

NGC 3003 (Galaxy)
Right ascension: 9h 49m Declination: 33 19'
Constellation: Leo Minor
Date/time: 2014.03.29 21:00 UT
Equipment: 12" f/5 Newtonian
FoV: 23' Magnification and filter(s): 167x
Seeing: 3/10 Transparency: 3/5
SQM: 21.27 m/as2 Temperature: 3C
Humidity: low Wind: none
Sight: 2 - minor details, somewhat interesting
Difficulty: 4 - hardly visible, dark adaptation and very dark skies needed, averted vision is required to see details
Position: 4 - hard, complex starhopping needed
Location: Ndasdladny, Hungary
Observer: Ferenc Lovr
Description:

A very faint edge-on galaxy with an E-W elongation. Its surface is very smooth without any sign of a brighter central region, but its central bulge is almond shaped with its Southern side somewhat flatter than its Northern. When viewing with low magnification, it appears in one FoV with the nearby galaxy NGC 3021.


Hi-resolution image: [ reversed sketch | original sketch ]

NGC 3254 (Galaxy)
Right ascension: 10h 30m Declination: 29 26'
Constellation: Leo Minor
Date/time: 2014.03.29 20:30 UT
Equipment: 12" f/5 Newtonian
FoV: 24' Magnification and filter(s): 167x
Seeing: 2/10 Transparency: 3/5
SQM: 21.26 m/as2 Temperature: 6C
Humidity: low Wind: none
Sight: 2 - minor details, somewhat interesting
Difficulty: 4 - hardly visible, dark adaptation and very dark skies needed, averted vision is required to see details
Position: 3 - moderate, some starhopping needed
Location: Ndasdladny, Hungary
Observer: Ferenc Lovr
Description:

Very faint, strongly elongated, nearly perfectly edge-on galaxy. A really tiny one, but the bad seeing does not allow me to use a higher magnification. I suspect a very faint star-like core.


Hi-resolution image: [ reversed sketch | original sketch ]

NGC 3301 (Galaxy)
Right ascension: 10h 38m Declination: 21 48'
Constellation: Leo
Date/time: 2014.03.28 22:15 UT
Equipment: 12" f/5 Newtonian
FoV: 11' Magnification and filter(s): 300x
Seeing: 4/10 Transparency: 3/5
SQM: 21.24 m/as2 Temperature: 3C
Humidity: dry Wind: none
Sight: 2 - minor details, somewhat interesting
Difficulty: 4 - hardly visible, dark adaptation and very dark skies needed, averted vision is required to see details
Position: 3 - moderate, some starhopping needed
Location: Ndasdladny, Hungary
Observer: Ferenc Lovr
Description:

Tiny, faint galaxy with a strong elongation to the SW-NE direction. Its core is definitely brighter but instead of featuring a star-like core, it displays a little central disk. To the North and South of this I can see two arcs that are somewhat brighter than the surface of the galaxy, although I'm not sure if what I see is only an illusion. According to a check I've done later, I've only witnessed the central part of this object.


Hi-resolution image: [ reversed sketch | original sketch ]

NGC 2964 + NGC 2968 (Galaxy)
Right ascension: 9h 44m Declination: 31 54'
Constellation: Leo
Date/time: 2014.03.28 21:30 UT
Equipment: 12" f/5 Newtonian
FoV: 24' Magnification and filter(s): 167x
Seeing: 3/10 Transparency: 3/5
SQM: 21.13 m/as2 Temperature: 6C
Humidity: low Wind: breeze
Sight: 3 - definite details, interesting look
Difficulty: 4 - hardly visible, dark adaptation and very dark skies needed, averted vision is required to see details
Position: 2 - easy, bright star nearby
Location: Ndasdladny, Hungary
Observer: Ferenc Lovr
Description:

Interesting but very faint pair of galaxies in the constellation Leo the lion. Both of them is oval, the galaxy NGC 2964 to the SW has a very delicate star-like core. This galaxy also displays an interesting detail mostly with the averted vision: its NE side is a bit brighter than the other, forming a triangular shape. Its even fainter companion, the NGC 2968 does not show any detail.


Hi-resolution image: [ reversed sketch | original sketch ]
Sign in

Username:
Password:



Articles

About me
My equipment

DIY - Cheshire Eyepiece
DIY - Apodizing maskNEW!

Messier Marathon 2013 Tavasz [magyarul]


Advertisement


All text and images are ©opyright of Ferenc Lovr. All rights reserved worldwide.

[473462]