I’m not an astrophotographer by any means, but I do have some decent, in-focus pictures I’m asking my brother (a professional photographer) to help me dial in/remove power lines. I used a digital single-lens reflex camera, and its widest field of view first, and once I saw it on the camera preview screen, I could spot it naked-eye. It’s setting at the beginning of the night and really hard to spot naked-eye, the comet is getting fainter the farther it gets from the Sun, and that faintness is competing with the sunset since it’s to the north-northwest. “I just went out tonight (er, it’s 1 a.m., so I mean last night, Sunday) and got my first glimpse. Alicia Aarnio on July 19, 18mm lens, f/5, ISO 1600, 13s exposure. Aarnio’s photos are featured above and below, as well as her dispatches from viewing Comet NEOWISE over a few evenings during the past week. Aarnio uses large data sets and the solar-stellar connection to understand stars like the Sun when it was a few million years old and how it evolved to be the star we know now.Ībout the event of the comet she says, “It’s not of specific research interest to us, but it’s fun to get excited about rare things happening in the sky!”ĭr. The Campus Weekly staff caught up with UNC Greensboro Physics and Astronomy faculty to hear how they’ve been observing the comet.Īssistant Professor Alicia Aarnio, new to UNCG last year, studies solar and stellar magnetic fields and how magnetic fields facilitate the flux of mass and energy within a star-disk system. It has made an impressive appearance across the Northern Hemisphere and some have called it the best comet performance since 1997’s Hale-Bopp show. Alicia Aarnio on July 26, 50mm lens, f/1.4, ISO 1600, 17s exposureĬomet NEOWISE, or C/2020 F3 was spotted by astronomers in late March on its 6,000-year loop around the solar system. This identical image is displayed without the use of “false colors” to enhance brightness variations, and represents a more realistic depiction of the comet’s coma as seen through a moderate-aperture telescope.Comet NEOWISE captured by Dr. The image consists of two co-added 40-second images prepared and processed by UNCG undergraduate Chris Deloye. The image measures approximately 3 x 4 minutes of arc, and records stars as faint as approximately 16th magnitude. This “false color” image depicts the brigher regions of the comet’s coma as pink/red, and the fainter portions of the coma as green or grey. Image of Comet Hale-Bopp as it approaches the inner solar system in summer 1996. Note the broad ion tail (faint blue) and the brighter dust tail.ĬCD Images of Comet Hale-Bopp, July 1996 July 11, 1996 It is a 10-minute exposure on Konica 400 film using a 400 mm f/5.6 lens. Kimura as Hale-Bopp approached perihelion and was visible in the early morning sky. ![]() ![]() The central region of the comet’s coma was badly overexposed in order to detect the faint rings. The image shows the faint outer “rings” - perhaps 15 or 20 of them are detectable in the original image. Comet Hale-Bopp was approaching perihelion. This 16-second unfiltered CCD image was taken with the 0.81-meter telescope at the Three College Observatory.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |