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Inspired by Brian Wilson's excellent capture of the Milky Way passing through the same region of sky as in this image (see www.flickr.com/photos/55738210@N05/7665791942/), I thought that I would point my own camera skyward, tonight, to capture the asterism in the northern hemisphere's night sky known as the Summer Triangle. What impressed me most about Brian's image, was not so much that he had captured the faint light of the Milky Way in such exquisite detail, but that I was able to pick out a few open clusters and areas of nebulosity amongst the myriad of faint stars visible in Brian's wide-angle image that I would normally consider only visible in binoculars or a small telescope!
Tonight was not the best night for photographing the night sky and certainly not one to try and emulate Brian's efforts (with or without ladder). The waning gibbous moon, which was nearly 3 days past full, was visible in the south eastern sky and illuminated what was a misty night sky (to the extent that I wasn't sure how good this shot was going to turn out). I clipped the bottom end of dynamic range in this monochromatic image to remove any 'moon glow', creating a void in the bottom left of the image where the sky was obscured by a conifer tree (now no longer visible against the now absent moonglow post clipping). The image was also sharpened to increase the contrast between the stars and the night sky. The exposure was a short 5 seconds (at ISO 1600, f/5.6 at a focal length of 18 mm). Despite the moonlight (that washed all but the brightest stars out to the naked eye), the camera sensor was able to capture those stars that would have been visible to the naked eye on a crystal clear night devoid of any light pollution (and even those fainter stars that are below naked eye visibility on closer inspection)!
The Summer Triangle is an unofficial large asterism in the sky formed from three bright stars (Deneb in the constellation of Cygnus, Vega in the constellation of Lyra (www.flickr.com/photos/richard_stocker_photography/7384994...) and Altair in the constellation of Aquila). Astriums like the Summer Triangle are used by novice amateur astronomers as signposts to help them find their way around an area of sky unfamiliar to them with the aid of a star map.
Balade dans le parc national du Rincón (région du Guanacaste) à la découverte des phénomènes volcaniques et des cascades cachées sur les versants du volcan. Sans compter les nombreuses rencontres animalières dont celle d’un boa dans une forêt tropicale encore très dense !
Le paysage rencontré est différent de tout ce que nous avons pu voir auparavant : sur plusieurs sentiers nous pouvons apprécier de très près l’activité volcanique, notamment les fumerolles et les "pailas”.
Bain d’argile riche en oligo-éléments dans l’une des sources chaude sur le sentier Santa María.
Retour au lodge, sorte d'hacienda située dans une vaste propriété en pleine nature au pied du volcan… pour un coucher de soleil flamboyant.
Balade dans le parc national du Rincón (région du Guanacaste) à la découverte des phénomènes volcaniques et des cascades cachées sur les versants du volcan. Sans compter les nombreuses rencontres animalières dont celle d’un boa dans une forêt tropicale encore très dense !
Le paysage rencontré est différent de tout ce que nous avons pu voir auparavant : sur plusieurs sentiers nous pouvons apprécier de très près l’activité volcanique, notamment les fumerolles et les "pailas”.
Bain d’argile riche en oligo-éléments dans l’une des sources chaude sur le sentier Santa María.
Retour au lodge, sorte d'hacienda située dans une vaste propriété en pleine nature au pied du volcan… pour un coucher de soleil flamboyant.
This guy was great fun to ham it up with. We must have done different poses for 5 minutes or more. Top to bottom, he pulled off the "Classic Trek Klingon" perfectly.
Capture the Flag was held on Wednesday, October 5, at Jefferson Farm.
Photo by Mary Watt | © 2022 Curators University Missouri
The vicinity of Grand Canyon is among the most remote and least developed in the US; this works out very well for stargazing, due to the lack of light pollution that plagues sprawling metropolises like Los Angeles or Phoenix. It also helps that Grand Canyon's rims are dry, high-altitude areas, translating to less air and moisture getting in the way as well.
I decided to attempt astronomy photography. Here is a look at the W-shaped Cassiopeia. Of course, with the stars being as dim as they are, long exposure times are necessary, but exposing for more than a few seconds often results in capturing streaking due to the Earth's rotation. For that professional quality astronomy photos, I will need to have professional astronomer equipment (namely a tripod that tracks the Earth's rotation, even a computerized telescope, which I already own but can't quite use right).
Capture the Flag was held on Wednesday, October 5, at Jefferson Farm.
Photo by Mary Watt | © 2022 Curators University Missouri
Question: Are #Demodex mites the same as head lice?
Answer: No, mites are different to head #lice. Mites are parasites that live inside hair follicles and feed off of the oils they produce. Lice are larger, and can be seen by the naked eye. They live on top of the human scalp, and feed exclusively on blood.
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