Changes between Version 49 and Version 50 of WikiStart
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- Feb 21, 2018, 3:25:42 PM (7 years ago)
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WikiStart
v49 v50 1 1 = The MPIA 70cm Telescope -- IAU observatory code 024 = 2 Located in the eastern dome of the Elsässer Lab, MPIA operates a 70 cm f/8 Cassegrain telescope ready to be used by students as well as staff for practice, scientific observations, testing of new hardware, or just: fun. It's alternative name - King - was derived from the german phrase "Königstuhl Instrument zum in den Nachthimmel Gucken" ("Königstuhl Instrument for Night-sky Watching").2 Located in the eastern dome of the Elsässer Lab, MPIA operates a 70 cm f/8 Cassegrain telescope ready to be used by students as well as staff for practice, scientific observations, testing of new hardware, or just: fun. It's alternative name - King - was derived from the german phrase "Königstuhl Instrument zum in den Nachthimmel Gucken" ("Königstuhl Instrument for Night-sky Watching"). 3 3 4 4 [[Image(king70_astralux_ann.png, right, width=350,margin-left=30, title="The 70cm telescope during AstraLux precommissioning", longdesc="The 70cm telescope during AstraLux precommissioning")]] … … 6 6 It is currently equipped with a scientific grade 2kx2k back-illuminated, nitrogen-cooled SITe CCD -- identical to cameras used e.g. at [http://www.caha.es Calar Alto Observatory]. With a pixel size of 15umx15um it provides a field of view of 18.8x18.8 arcmin. A specially crafted manual filter slider allows unvignetted observations through a wide range of filters, including the standard series of UBVRI as well as an SDSS z' filter and a superb collection of high-performance narrow band interference filters for OII,OIII, H beta, H alpha, SII and SII-continuum (off-line passband). Unguided observations can be as long as 180s, giving you a limiting magnitude of ~19.5mag in the R-band. 7 7 8 Typical seeing conditions are around 2 arcsec in the visible, but can be as good as 1arcsec. Being located quite outside the city the brightening of the sky due to street illumination is acceptable, and using one of the interference filters gives a pitch-black sky indeed, allowing the acquisition of stunning images of emission nebulae like e.g. the Crab Nebula M1 shown on this page.8 Typical seeing conditions are around 2 arcsec in the visible, but can be as good as 1arcsec. Being located quite outside the city the brightening of the sky due to street illumination is acceptable, and using one of the interference filters gives a pitch-black sky indeed, allowing the acquisition of stunning images of emission nebulae like e.g. the Crab Nebula M1 shown on this page. 9 9 10 10 [[Image(king70_m1_ann2.png, left, width=350,margin-right=30, title="The Crab nebulae imaged withthe 70cm telescope", longdesc="The Crab nebulae imaged withthe 70cm telescope")]] … … 14 14 * Photometric data has been used in refereed publications, either to complement data taken with other instruments or to fill in gaps in long-term monitoring projects 15 15 * It has been used to perform early tests with the [http://en.wikipedia.org/wiki/Lucky_imaging Lucky Imaging] technique and later on to pre-commission the [http://www.mpia.de/ASTRALUX AstraLux] high-speed camera, which is offered as regular instrument at the [http://www.caha.es/CAHA/Telescopes/2.2m.html Calar Alto 2.2m-telescope] since 2006. 16 * Numerous astrometric observations of main belt asteroids and near earth objects have been obtained and submitted to the IAU's [http://www.minorplanetcenter.org Minor Planet Center] in order to either improve orbital elements of known asteroids or to confirm newly discovered potentially hazardous asteroids. For these observations the 70 cm telescope operates under the official IAU observatory code 024.16 * Numerous astrometric observations of main belt asteroids and near earth objects have been obtained and submitted to the IAU's [http://www.minorplanetcenter.org Minor Planet Center] in order to either improve orbital elements of known asteroids or to confirm newly discovered potentially hazardous asteroids. For these observations the 70 cm telescope operates under the official IAU observatory code 024. 17 17 18 18 During these observations it has been unavoidable to discover a total of three asteroids, two of which have received a final number and become eligible for a real name. These are the main belt objects [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=julietclare (202736) Julietclare] and finally: [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=mpia (293934) MPIA]. It is sincerely hoped that the latter asteroid will provide enough room to ease the institute's chronic deficit of office space once and for all as soon as interplanetary commuting can be handled correctly by the travel department. … … 31 31 Access to the telescope is currently granted only to those who are acquainted with the odds and ends of correct handling of liquid nitrogen. The necessary training is given by Werner Laun, preferably not for single persons but groups to keep the time effort small. These trainings will be organised as needed. 32 32 33 Anyone who wants to learn more about the telescope and possible observational and hardware projects or simply wants to use it and help with the regular maintenance is strongly encouraged to contact Jörg-Uwe Pott (jpott@mpia.de) or Felix Hormuth (hormuth@mpia.de).33 Anyone who wants to learn more about the telescope and possible observational and hardware projects or simply wants to use it and help with the regular maintenance is strongly encouraged to contact Jörg-Uwe Pott (jpott@mpia.de) or Conchi Cárdenas (conchi@mpia.de). 34 34 35 35 = ''' KING mailing list ''' =
