Light Pollution Measured by the DSS-7 (Deep Space Spectrograph) Rose Haber Chicago, Illinois at night

Need Glare Light Trespass Harms wildlife Wastes government money -Cinzano, 2009 Vancouver

Light Pollution Misdirected or misused light Inappropriate application of exterior lighting products Light causing a glow over urban/suburban areas

Hertzsprung–Russell Diagram scatter graph of stars shows the relationship between absolute magnitudes versus classifications and temperatures

SpectroscopySpectroscopySpectroscopySpectroscopy Spectrograph- takes light from a source and separates it by wavelength

Stellar Spectroscopy

Spectrograph Fundamentals

The DSS-7 Absorption lines for different chemicals

CCD Imaging ST-7XME CCD Camera com/sbwhtmls/online.htm

Maxim DL Photo-Processing image stacking software

Outdoor Lighting Mercury vs. Sodium

The Bortle Dark Sky Scale

Spectrum of the night sky at Mound Ekar Observatory Natural sky lines/ artificial lighting Literature Review Proposal of a Spectroscopic Map of Astronomical Sites Rosoni, 1997

Literature Review Continued Modeling of Light Pollution in Suburban Areas Using Remotely Sensed Imagery and GIS Chalkias et. al, 2006

Literature Review Continued Measuring Night-Sky Brightness with a Wide-Field CCD Camera Duriscoe et al.

Literature Review Continued Visual measurements and spectral survey of night sky brightness in Venezuela and Italy F. Della Prugna,

Purpose To examine the difference between the amount of pollution of light and the light pollutants in Manhasset, NY as opposed to Montauk, NY and hopefully influence the change to environmentally sound lighting systems.

Hypothesis Null Hypothesis: no difference between the light pollution in both areas Alternate Hypothesis: light pollution will be greater in Manhasset than in Montauk

Methodology Light Pollution Measured by the DSS-7 Control: sky measured by DSS-7 in Montauk, NY Variable: sky measured DSS-7 in Manhasset, NY Measurement Measured once a week in Montauk and imaged, measured once a week in Manhasset and imaged over 7 months Analysis Graph/map of data collected Amounts vs. types of light pollution analyzed Procedure Spectrograph attached to the CCD imager, many images taken to examine types of light pollutants, images taken during no moon periods-new moon, every magnitude of stars will be imaged and observed images processed and stacked using Maxim DL software

Study done in accessible places –Manhasset, NY –Montauk, NY/ Upstate, NY CCD imager/DSS-7 easily portable Software downloaded for free off SBIG website/astronomy coolwiki Do-Ability

Budget

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