NGC6445 The Box Nebula (AlBroxton)

NGC6445 The Box Nebula

NGC6445 is also called the "Box Nebula" because is seemingly rectangular shape. NGC 6445, a small planetary nebula, lives in a very busy part of the Milky Way in Sagittarius, just west of a mag 7.6 star. The distance to NGC6445 is estimated at about 4500 light years. The brighter part of the nebula is about the size of Jupiter. Discovered in 1786 by William Herschel.

Observation notes: NGC6445 is a planetary nebula. With the 6" scope and a 22mm eyepiece it was pretty faint, pretty small, not brighter in the middle and irregularly round. This planetary is "above" a globular cluster (NGC6440) of about the same brightness, but the globular is twice its size. Raising the power with the 8.8mm eyepiece shows the nebula as still pretty faint, but it now has some size and is elongated 2X1 in a PA of 135 degrees. NGC6445 with the 13 inch is pretty bright, large and has an elongated box shape at 200X. The outer rim of this planetary is brighter than the center. It shows a small dark lane involved at high power. A white and blue double star is nearby. The late Pierre Schwaar called this object the “Micro Dumbbell”.

Original
B
C
Final
D

Allen Broxton

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 failed
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Astrometry.net job	1554657
PixInsight job	n/a
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