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Latest Articles

  • NGC 7009 - Saturn Nebula (2022)
  • NGC 6871 (2022)
  • Messier 30 (2022)
  • NGC 6857 (2022)
  • NGC 5068 (2022)
  • V354 Cephei (2022)
  • NGC 6934 (2022)

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Messier Object Variable Star Globular Cluster Emission Nebula Planetary Nebula Nearest Stars Reflection Nebula Carbon Star Galaxy Supernova

NGC 4647 and Messier 60, Dance of Galaxies.

Constellation: Virgo
Right Ascension: 12h 43m 32.3s
Declination: 11° 34′ 55″
Distance: 56 million ly - 63 million ly
Star InactiveStar InactiveStar InactiveStar InactiveStar Inactive

NGC 4647 is an intermediate spiral galaxy, and Messier 60 is elliptical galaxy that are just beginning to interact with each other. The pair of interacting galaxies are cataloged as Arp 116, which is a catalog of interacting galaxies. The pair are a part of the Virgo galaxy cluster.

Annotated image follows.

Details
Category: Galaxies
Published: 10 August 2022
  • Messier Object
  • Galaxy
  • Galaxy Cluster

Read more: NGC 4647 and Messier 60, Dance of Galaxies.

Telescope: Explore Scientific 127 Refractor
Camera: ZWO 2600 MM

Messier 75 (2022)

Constellation: Sagittarius
Right Ascension: 20h 06m 04.85s
Declination: −21° 55′ 17.85″
Distance: 68,000 ly
Star InactiveStar InactiveStar InactiveStar InactiveStar Inactive

If globular cluster NGC 5897 (2022) ranks low on the Shapely-Sawyer concentration scale, Messier 75 comes out at the top of it's class with a rank of 1 (I). If it wasn't for being on the other side of the galactic center, it would be much more spectacular to image. The cluster has a radius of 67 light years, and contains some 400,000 stars. Would definitely be a sky full of bright stars if one was located inside the cluster.

Details
Category: Globular Clusters
Published: 07 August 2022
  • Messier Object
  • Globular Cluster
Telescope: Explore Scientific 127 Refractor
Camera: ZWO 2600 MM

NGC 5897 (2022)

Constellation: Libra
Right Ascension: 15h 17m 24.40s
Declination: −21° 00′ 36.4″
Distance: 40,000 ly

User Rating: 5 / 5

Star ActiveStar ActiveStar ActiveStar ActiveStar Active

NGC 5897 is a globular cluster that is a satellite globular of the Milky Way Galaxy. Forming at or before the formation of our galaxy, they typically range in age of 10-12 billion years old. Age is estimated based on the amount of metal located in the stars, which is considered to be anything other than hydrogen and helium. It's measure of metallicity is measured at -1.9 (Fe/H). NGC 5897 has a low density of stars, and using the Sawyer Concentration class which ranges from 1 to 12 (most to least), it is ranked as a low 11. 

Details
Category: Globular Clusters
Published: 29 July 2022
  • Globular Cluster
Telescope: Explore Scientific 127 Refractor
Camera: ZWO 2600 MM

Y CVn

Constellation: Canes Venatici
Right Ascension: 12h 45m 07.826s
Declination: +45° 26′ 24.93″
Distance: 760 - 1000 ly
Apparent Magnitude: +4.86 - +7.32
Star InactiveStar InactiveStar InactiveStar InactiveStar Inactive

Also know as its popular name La Superba, a giant red star, and one of the reddish known with a B-V index of 2.54. A carbon in the star's outer shell absorbs blue light giving its distinctive reddish light. Primary has a 160 day cycle in its magnitude variations. The star is in its final stages of its evolution and is expected to expel its outer layers in the future, and form a planetary nebula before shrinking down to become a slowly cooling white dwarf.

Details
Category: Stars
Published: 28 July 2022
  • Carbon Star
  • Variable Star
Telescope: GSO RC10
Camera: ZWO 2600 MM

Draco Dwarf Galaxy

Constellation: Draco
Right Ascension: 17h 20m 12.4
Declination: +57° 54′ 55″
Distance: 260,000 ly
Star InactiveStar InactiveStar InactiveStar InactiveStar Inactive

A bit difficult to see, it was only noticed in 1954 from Palomar sky survey photographic plates. It is a satellite galaxy of our Milky Way galaxy.
Consisting of mostly old population stars its virtually dust free thus not creating very many new stars.

Annotated image follows.

Details
Category: Galaxies
Published: 28 July 2022
  • Galaxy

Read more: Draco Dwarf Galaxy

Telescope: Explore Scientific 127 Refractor
Camera: ZWO 2600 MM

Baade's Window (2022)

Constellation: Sagittarius
Right Ascension: 18h 03m 32.14s
Declination: -30d 02m 06.96s
Star InactiveStar InactiveStar InactiveStar InactiveStar Inactive

Baade's Window is the largest of 6 relative dust free zones allowing astronomers to study stars in the central bulge of the Milky Way Galaxy. Nothing illustrates the billions of stars in our galaxy like a view of the view of the galactic center, even if only a tiny slice.

Also visible are two globular clusters, NGC 6522 at the center and NGC 6528 below. NGC 6522 is centered in the view of Baade's Window, and at an estimated age of 12 billion years makes it one of the oldest around our galaxy and lies at a distance of 25,100 light years. NGC 6528 is 25,800 light years distant and is unusually meta rich for a globular

The bright star in the lower left is W Sgr, which is a multiple star system, and the primary star is a classical Cepheid variable star that it's magnitude varies over 7 1/2 days.

Details
Category: Stars
Published: 27 July 2022
  • Globular Cluster
  • Variable Star
Telescope: Explore Scientific 127 Refractor
Camera: ZWO 2600 MM
  1. Ross 154 (2022)
  2. KW Sagittarii
  3. Star HD 84406
  4. Wolf 359 (2022)

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