Astronomical Station Vidojevica and BELISSIMA

Vince OliverAstronomical Observatory of Belgrade

ovince@aob.rs

Astronomical Observatory of Belgrade: The Headquarter with Photovisual Refractor Askania

135 / 1000 and 125 / 1000 mm

Astronomical Observatory of Belgrade: Big Refractor "Zeiss" 650 / 10550 mm

Astronomical Observatory of Belgrade: Solar Spectrograph

Littrow type 9000 mm / 100 000 developped by attaching to the: 1. Zeiss equatorial 200 / 3020 mm two astrocameras Tessar 2. Petzval 100 / 800 mm.

Astronomical Observatory of Belgrade: Zeiss Astrograph 160 / 800 mm.

History of AOB-1887, a decree on foundation of the AOB is sign (on initiative of Milan Nedeljkovic; fig. left). He became the first director of the observatory. -1925 ., Vojislav Miskovic (fig middle) become a new director of the observatory. -1929., Vojislav Miskovic obtained means for building a new observatory on the hill Zvezdara-1930-1932, the new observatory was built (by chech architect Jan Dudovija; fig right), on 4.5 ha area and 253m altitude above the sea. Instruments were installed in the following two yrs.

Scientific projects on AOB~ 60 people employed~ 45 scientists (Astronomers and Astrophysicist)7 scientific projects supported by Ministry of Science of R. Serbia

•Astrophysics of stars and Sun•Astrophysical spectroscopy•Stellar and galactic systems•Interstellar and intergalactic matter•Cosmology and astrobiology•Dynamic astronomy and planetology•History and philosophy of astronomy

-An idea to build an observatory outside of Belgrade was born in 80’s -Land on the mountain allocated to AOB in 2003-Road and electric-power were already raised before 2003 -Well for the water drilled in 2009-Living pavilion finished in 2009-60cm telescope in function since 2010-Wireless Internet introduced in 2011

Current issues: -“Building” of a new 1.5m-class robotic telescope-Amelioration of the road-Aux. equipment-Testing the 60cm telescope-Site testing

Astronomical Station Vidojevica: Brief history

Infrastructure

- 6m in diameter- Driven by 1500W electro-motor

Dome

Problems: - not completely waterproof, - dome-gape is narrow, - extremely slow (10min/360o),

- Teleskop & mount are from Astro Systeme Austria (ASA)-Cassegrain (parabolic+hyperbolic)-primary: LOMO; 60cm; f/3; parabolic-secondary: LOMO; 20cm; hyperbolic-system: F=6000mm; f/10 (f/5 with focal-reducer)

Telescope- primary mirror: ~50kg - telescope: ~150kg - counterweights: ~125kg + 30kg + 2x5kg - pillar: ~80kg - mount: ~ 125kg

-First version was Fork-EQ mount-Now it is a German-EQ mount- The pillar, mount and telescope are fixed on the concrete pillar (1m diameter; 1.5m height) - The telescope iron pillar is aligned to Polaris (~80kg weight)-The telescope is balanced with counterweights 125kg (+ 30kg)

Telescope mount

-LOMO; parabolic; D=60cm; f/3

Primary mirror

-LOMO; hyperbolic; precnika D=20cm

Secundary mirror

Observational projects

- Double stars: orbital parameters - Double stars: physiscal parameters (mass ratio) - Spectroscopy (stars, galaxies, AGNs) - Astrometry

Seeing camera-SBIG All Weather Seeing Monitor with ST-402ME camera-The Camera is in a waterproof box -Camera has a f/5.3 lens with F=150mm

Meteorological Station-Davis Vantage Pro 2-Wireless communication with the console-Measure: temp., pressure, humidity, rain mass, wind velocity and direction

All-sky camera-SBIG AllSky-340 camera-Kodak KAI-340 CCD chip with 640x480 pixels, 7.4um pixel size-f/1.4 fisheye lens F=1.4mm

Adaptiv optic-SBIG AO-7-Used with some SBIG cameras (ST-10ME)

Cameras

-Apogee Alta U42 (2048x2048, 13.5um piksel, 27.6x27.6mm image, FOV=15’x15’)-Apogee Alta E47 (1024x1024, 13um piksel, 13.3x13.3mm image, FOV=7’x7’ )-SBIG ST-10ME (2184x1472, 6.8um piksel, 14.9x10mm image, 8.3' x 5.6')

FOV U42 camera on the 60cm telescope

Filtri - 2” BESSEL filter set: B, V, R, I, and Clear - 2” Strömgren filter set: v, b, y, H-beta, and H-alpha

SpektrografModel: SpectraPro-750Type: Czerny-TurnerSpectral range: violet to infraredAperture ratio: f/9.7Focal length of the Collimator: 750 mmFocal length of the Camera: 750 mmGratings: 3 pieces on the rotating turret (300, 600 and 1200 grooves/mm)

BELISSIMABELgrade Initiative for Space Science, Instrumentation and Modelling in

Astrophysics

Money granted from European Commission for Research and Innovation (FP7)

Working packages

•WP1 - Reinforcement of the Astronomical Observatory, Belgrade.

•WP2 - Purchase, installation and testing of new observing equipement.

•WP3 - Human potential, training and public outreach.

•WP4 - Popularization of Astronomy and Science.

•WP5 - Project Management

Telescope “Milankovic”

Thank you for Your attention

Zahvaljujem se Draganu R., Stevanu G., Igoru S. i Miroslavu T. na fotografijama koji su korisceni u ovom predavanju