Society News - Bristol Astronomical Society
... (Algieba), this is a great double for small telescopes. The primary is a magnitude +2.2 K-class yellow-orange giant, it’s companion is a magnitude +2.5 yellow Gclass star. The pair are separated by 4.4 arcseconds. Just to the west of Leo lies the faint constellation of Cancer, which is home to one o ...
... (Algieba), this is a great double for small telescopes. The primary is a magnitude +2.2 K-class yellow-orange giant, it’s companion is a magnitude +2.5 yellow Gclass star. The pair are separated by 4.4 arcseconds. Just to the west of Leo lies the faint constellation of Cancer, which is home to one o ...
Night Photography
... Problem: Capturing star trails in urban areas is impossible with conventional photography because lights and light pollution makes it impossible to take a long enough exposure to capture the motion of the stars Solution: “Image Stacking” ...
... Problem: Capturing star trails in urban areas is impossible with conventional photography because lights and light pollution makes it impossible to take a long enough exposure to capture the motion of the stars Solution: “Image Stacking” ...
Data reduction strategies for lucky imaging
... function, with a Moffat halo. This radially symmetric sum of a convolved Airy function and a Moffat function results from the points of peak intensity adding coherently to form the Airy core, while secondary peaks (or “speckles,” as they are often referred to) add incoherently resulting in the unif ...
... function, with a Moffat halo. This radially symmetric sum of a convolved Airy function and a Moffat function results from the points of peak intensity adding coherently to form the Airy core, while secondary peaks (or “speckles,” as they are often referred to) add incoherently resulting in the unif ...
Nov 2017 - What`s Out Tonight?
... The planets are best observed with a telescope using magnifithat were born out of the same nebula cloud. A group often forms cations from 50x to 200x. The five naked-eye planets are Mera pretty pattern. The Pleiades and Praesepe are great examples. cury, Venus, Mars, Jupiter and Saturn. Venus is ext ...
... The planets are best observed with a telescope using magnifithat were born out of the same nebula cloud. A group often forms cations from 50x to 200x. The five naked-eye planets are Mera pretty pattern. The Pleiades and Praesepe are great examples. cury, Venus, Mars, Jupiter and Saturn. Venus is ext ...
February 2008
... bright and it was easy to mark it’s yearly arrival. On January 1st this year, Sirius was right at due South at midnight. Sirius is twice as large as the Sun and has double it’s mass. It produces more than 20 times the light as the Sun. That isn’t really super bright, but since Sirius is only 8.6 lig ...
... bright and it was easy to mark it’s yearly arrival. On January 1st this year, Sirius was right at due South at midnight. Sirius is twice as large as the Sun and has double it’s mass. It produces more than 20 times the light as the Sun. That isn’t really super bright, but since Sirius is only 8.6 lig ...
Astronomy 101 Exam 3, Form A Name: SUID: Lab section number:
... • Students who do not speak English well may use a translation dictionary. • If you have a question, raise your hand, and a proctor will assist you. • Do not attempt to communicate with anyone other than teaching staff during the exam. • This exam has 27 multiple choice questions worth 3 points each ...
... • Students who do not speak English well may use a translation dictionary. • If you have a question, raise your hand, and a proctor will assist you. • Do not attempt to communicate with anyone other than teaching staff during the exam. • This exam has 27 multiple choice questions worth 3 points each ...
Astrophotography
Astrophotography is a specialized type of photography for recording images of astronomical objects and large areas of the night sky. The first photograph of an astronomical object (the Moon) was taken in 1840, but it was not until the late 19th century that advances in technology allowed for detailed stellar photography. Besides being able to record the details of extended objects such as the Moon, Sun, and planets, astrophotography has the ability to image objects invisible to the human eye such as dim stars, nebulae, and galaxies. This is done by long time exposure since both film and digital cameras can accumulate and sum light photons over these long periods of time. Photography revolutionized the field of professional astronomical research, with long time exposures recording hundreds of thousands of new stars and nebulae that were invisible to the human eye, leading to specialized and ever larger optical telescopes that were essentially big cameras designed to collect light to be recorded on film. Direct astrophotography had an early role in sky surveys and star classification but over time it has given way to more sophisticated equipment and techniques designed for specific fields of scientific research, with film (and later astronomical CCD cameras) becoming just one of many forms of sensor.Astrophotography is a large sub-discipline in amateur astronomy where it is usually used to record aesthetically pleasing images, rather than for scientific research, with a whole range of equipment and techniques dedicated to the activity.