Hamburger galaxy (Alan Ćatović)

Celestial hemisphere: Northern · Constellation: Leo (Leo) · Contains: NGC 3628

Hamburger galaxy

Lokacija snimanja: Sarajevo, Stup

Oprema: NEQ6, C8, Atik 383L+mono

Vođenje: QHY-5II, PHD

Ekspozicija: 44x120s

Obrada: Pixinsight, Photoshop

NGC 3628 je najtamniji član grupe galaksija Leo Triplet I (ako se izuzme NGC 3593 koja je naknadno uvrštena). Nalaz se u sazviježđu Lav. Galaksija je relativno tamna, pa je Charles Messier nije otkrio svojim teleskopom. William Herschel galaksiju je otkrio 5 godina kasnije, koristeći mnogo jači teleskop. U svoj katalog upisao je pod imenom H.V.8.

NGC 3628 je spiralna galaksija, nama okrenuta svojim rubom. Na njenim fotografijama jasno je vidljiv disk prašine kako presijeca i dijeli galaksiju na pola. Galaksija pokazuje znakove deformacije uzrokovanih blizinom galaksija M65 i M66. NGC 3628 od svojih komšija je udaljena oko 250000 svj. godina. Sama galaksija se nalazi na udaljenosti od oko 35 miliona svj. godina, kao i ostatak grupe. Njen prečnik je oko 100000 svj. godina (sličnih dimenzija kao naša Mliječna staza).

NGC 3628 ima prividni sjaj od +9,5 magnituda. To je neznatno manje od susjedne M65 ali je zato površinski sjaj dosta manji. Uzrok tome su veće dimenzije galaksije pa je svjetlost raspoređena na veću površinu. Za posmatranje ove galaksije potreban je instrument od barem 90-100mm prečnika objektiva. I tada će galaksija biti veoma tamna i problematična za uočiti. Kroz 200 mm teleskop NGC 3628 se vidi kao svijetla pruga, duga oko 4′ i široka 1′ i nazire se središnje zadebljanje. Za optimalno promatranje potrebno je prozirno nebo i malo svjetlosno zagađenje.

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Basic success
Started	...
Astrometry.net job	3273399
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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