It is our 61st Anniversary today and what a lovely way to mark the occasion - to sit back, relax and enjoy this superb video slide show of the society through the years created by long standing member Arthur Cockburn.......
Month: November 2022
BAA ExoPlanet & ExoClock training videos of which 2 are by CMHASD members.
The videos from the British Astronomical Association (BAA) Exoplanet Division Online Workshop held on Saturday 12th November are now available to watch on the BAA YouTube Channel.
The below talk titles are links to watch the videos.
Two videos are by CMHASD members Rodney Buckland and Martin Crow.
Exoplanet Division update
EXPLORE introduction
Ariel and ExoClock with Anastasia Kokori
Mission and observational efficiency
ExoClock – a model of pro-am collaboration
EXPLORE Part 1 – Detecting exoplanets with Rodney Buckland
Observation
Modelling
Searching databases
Zooniverse
How to discover an exoplanet (telescope and camera not required) with Roger Dymock
EXPLORE Part 2 with Martin Crow
Introduction to HOPS
Synchronous observations to detect shallow transits
Data mining transit observations for variable star photometry
An alternative to HOPS
Observing with robotic telescopes by Rodney Buckland
EXPLORE NEEDS EXPLORERS with Roger Dymock
Rodney's Video
Martin's Video
Sun dog
A shinning example of a Sundog captured by member Martin Crow when out and about on the 20th Nov 2022.
A Sundog (or sun dog) is an optical atmospheric phenomenon that causes a bright, rainbow-colored patch of light to occur on either side of the sun or both sides at an angle of 22 degrees. Sun dogs occur as a result of the refraction or scattering of light from flat hexagonal-shaped ice crystals that are suspended in clouds.
In the most brilliant displays, when 2 Sundogs appear, it's as if there are now three suns in the sky -- the main sun and two little siblings.
These "side suns" are colloquially known as sun dogs, officially known as "parhelia," which is Greek for "next to the sun."
The Veil Nebula by Neil Webster
The latest stunning image of the Veil Nebula by member Neil Webster. Updated with another 3 hours worth of imaging grabbed on the night of the 21st Nov 2022.
Neil said ''I finally managed to get enough data to start to show the incredible subtle details in this object. This was processed from 5 hrs of data amassed over 3 evenings.''
The Veil Nebula is a diffuse nebula located in the northern constellation Cygnus, the Swan. It is the expanding remains of a massive star that exploded about 8,000 years ago.
Called the Veil Nebula, the debris is one of the best-known supernova remnants, deriving its name from its delicate, draped filamentary structures. The entire nebula is 110 light-years across, covering six full moons on the sky as seen from Earth.
It lies a few degrees to the south of the star Epsilon Cygni, also known as Aljanah.
Aljanah is one of the stars of the Northern Cross and marks the right wing of the celestial Swan.
The Veil Nebula is also known as Witch’s Broom Nebula, Bridal Veil Nebula, Cirrus Nebula or Filamentary Nebula. It is located approximately 1,470 light years from Earth.
The Veil Nebula has three main parts: the Eastern Veil, the Western Veil, and Fleming’s Triangle (Pickering’s Triangle). It has the designations NGC 6960, NGC 6992, NGC 6995, NGC 6974 and NGC 6979 in the New General Catalogue. The southernmost part of the Eastern Veil Nebula is assigned the catalogue designation IC 1340.
To see a more detailed view of this image check out Neil's Flickr page at https://www.flickr.com/photos/137388222@N05/52515415329/