NGC 4567 (Frank Colosimo)

Celestial hemisphere: Northern · Constellation: Virgo (Vir) · Contains: NGC 4564 · NGC 4567 · NGC 4568 · Siamese Twins

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NGC 4567

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NGC 4567

NGC 4567 and NGC 4568 (nicknamed the Siamese Twins or the Butterfly Galaxies) are a set of spiral galaxies about 60 million light-years away in the constellation Virgo.

These two galaxies are part of the Virgo cluster of galaxies. Although the two galaxies appear to be almost touching from our viewpoint, there is no sign of tidal filaments or distorted structure such as the type that is normally observed in gravitationally interacting galaxies. Recent studies have indicated that they are in the initial stages of interaction.

The galaxy to the right of the Siamese Twins is NGC 4564, a magnitude 11 elliptical galaxy in the same field of view.

These galaxies are in the process of colliding and merging with each other, as studies of their distributions of neutral and molecular hydrogen show, with the highest star formation activity in the part where they overlap. However the system is still in an early phase of interaction

Date: Mar 23 - Apr 27, 2014, Processing Apr 2, 2020

Location: New Ringgold PA

Optics: Hyperion f/8 12.5 inch, FL 2540 mm

Mount: Paramount ME

Camera: Apogee U8300

Guiding: ST-402 on Innovations Foresight On-Axis Guider, SharpLock focusing method

Exposure: LRGB: L:24x10min R:21x8 min, G:11x6 min, B:24x10 min for a total of 11.9 hrs. 80 subs at avg 536 sec

Processing: Image acquisition using CCD Autopilot. Initial processing was done using Maxim DL with subsequent processing with Photoshop.

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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
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Star trails
Northern lights
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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	Advanced success
Started	...
Astrometry.net job	3375056
PixInsight job	G5QLU9FLNBJLUYT5SBD06ZCDSIYGUVSH
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h36m29s.986
RA (top/left)	12h37m18s.511
RA (top/right)	12h36m53s.981
RA (bottom/right)	12h35m41s.402
RA (bottom/left)	12h36m06s.320

Dec (center)	+11°18′40″.00
Dec (top/left)	+11°09′07″.82
Dec (top/right)	+11°32′44″.48
Dec (bottom/right)	+11°28′11″.77
Dec (bottom/left)	+11°04′35″.39

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NGC 4567

NGC 4567

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NGC 4567

NGC 4567

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