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  • PAS IN: Namibië se hemelruim minste besoedel
Foto Dr. Fabio Falchi
Foto Dr. Fabio Falchi

PAS IN: Namibië se hemelruim minste besoedel

Die hemelruim bo Tivoli Astro Farm in Namibië is die minste deur kunsmatige lig besoedel, luidens ‘n onlangse studie van sowat 50 sterrewagte wêreldwyd.

‘n Span kenners, insluitende wetenskaplikes van Italië, Spanje en Chili, het ligbesoedeling by fasiliteite gemeet – by van die grootste professionele sterrewagte ter wêreld tot by kleiner fasiliteite wat op amateurs gemik is.

In dié studie, wat in die Monthly Notices of the Royal Astronomical Society gepubliseer is, sê die wetenskaplikes kunsmatige lig op Aarde besoedel die hemelruim bo die meeste vername sterrewagte. Daadwerklike optrede is dringend nodig om dit reg te stel, sê hulle.

Die mins besoedelde van al die sterrewagte in die studie was ‘n lodge in Namibië wat verskeie teleskope huisves wat aan amateur sterrekundiges verhuur word, het dr. Fabio Falci bevind. Falci, ‘n fisikus wat in ligbesoedeling aan die Universidade de Santiago de Compostela in Spanje spesialiseer, het die studie gelei.

“Ek was onlangs daar en kan bevestig dat dit die mins besoedelde plek is wat ek al ooit gesien het,” het Falci gesê.

“Ons moet probeer om die ligbesoedelingsvlakke by ander plekke te verminder om die toekoms van aardgebaseerde sterrekunde te beskerm,” het hy gesê.

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Republikein 2024-05-18

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Premier League: Manchester United 3 vs 2 Newcastle | Brighton 1 vs 2 Chelsea LaLiga: Real Sociedad 1 vs 0 Valencia | Almería 0 vs 2 Barcelona | Las Palmas 2 vs 2 Real Betis | Celta Vigo 2 vs 1 Athletic Club | Getafe 0 vs 3 Atletico Madrid | Sevilla 0 vs 1 Cadiz | Rayo Vallecano 2 vs 1 Granada SerieA: Fiorentina 2 vs 2 Napoli European Championships Qualifying: Southampton 3 vs 1 West Bromwich Albion | Leeds United 4 vs 0 Norwich City English Championship: Southampton 3 vs 1 West Bromwich Albion | Leeds United 4 vs 0 Norwich City Katima Mulilo: 10° | 31° Rundu: 10° | 30° Eenhana: 12° | 31° Oshakati: 13° | 31° Ruacana: 12° | 31° Tsumeb: 14° | 29° Otjiwarongo: 12° | 27° Omaruru: 13° | 30° Windhoek: 12° | 27° Gobabis: 13° | 27° Henties Bay: 19° | 33° Wind speed: 41km/h, Wind direction: NE, Low tide: 06:32, High tide: 12:50, Low Tide: 18:28, High tide: 00:56 Swakopmund: 20° | 23° Wind speed: 30km/h, Wind direction: SE, Low tide: 06:30, High tide: 12:48, Low Tide: 18:26, High tide: 00:54 Walvis Bay: 22° | 32° Wind speed: 30km/h, Wind direction: SE, Low tide: 06:30, High tide: 12:47, Low Tide: 18:26, High tide: 00:53 Rehoboth: 12° | 27° Mariental: 16° | 29° Keetmanshoop: 17° | 29° Aranos: 16° | 29° Lüderitz: 19° | 35° Ariamsvlei: 16° | 31° Oranjemund: 14° | 31° Luanda: 24° | 28° Gaborone: 13° | 27° Lubumbashi: 11° | 27° Mbabane: 11° | 23° Maseru: 8° | 23° Antananarivo: 14° | 24° Lilongwe: 15° | 26° Maputo: 19° | 26° Windhoek: 12° | 27° Cape Town: 15° | 20° Durban: 16° | 24° Johannesburg: 15° | 24° Dar es Salaam: 24° | 32° Lusaka: 15° | 26° Harare: 12° | 26° Currency: GBP to NAD 23.01 | EUR to NAD 19.73 | CNY to NAD 2.51 | USD to NAD 18.15 | DZD to NAD 0.13 | AOA to NAD 0.02 | BWP to NAD 1.3 | EGP to NAD 0.38 | KES to NAD 0.14 | NGN to NAD 0.01 | ZMW to NAD 0.7 | ZWL to NAD 0.04 | BRL to NAD 3.55 | RUB to NAD 0.2 | INR to NAD 0.22 | USD to DZD 134.35 | USD to AOA 847.42 | USD to BWP 13.49 | USD to EGP 46.86 | USD to KES 130.48 | USD to NGN 1467 | USD to ZAR 18.15 | USD to ZMW 25.45 | USD to ZWL 321 | Stock Exchange: JSE All Share Index 79530.63 Up +0.03% | Namibian Stock Exchange (NSX) Overall Index 1754.58 Up +0.81% | Casablanca Stock Exchange (CSE) MASI 13426.13 Up +0.11% | Egyptian Exchange (EGX) 30 Index 26142.84 Up +3.27% | Botswana Stock Exchange (BSE) DCI 9151.06 Same 0 | NSX: MTC 7.75 SAME | Anirep 8.99 SAME | Capricorn Investment group 17.34 SAME | FirstRand Namibia Ltd 49 DOWN 0.50% | Letshego Holdings (Namibia) Ltd 4.1 UP 2.50% | Namibia Asset Management Ltd 0.7 SAME | Namibia Breweries Ltd 31.49 UP 0.03% | Nictus Holdings - Nam 2.22 SAME | Oryx Properties Ltd 12.1 UP 1.70% | Paratus Namibia Holdings 11.99 SAME | SBN Holdings 8.45 SAME | Trustco Group Holdings Ltd 0.48 SAME | B2Gold Corporation 47.34 DOWN 1.50% | Local Index closed 677.62 UP 0.12% | Overall Index closed 1534.6 DOWN 0.05% | Osino Resources Corp 19.47 DOWN 2.41% | Commodities: Gold US$ 2 414.72/OZ UP +1.55% | Copper US$ 5.04/lb UP +4.12% | Zinc US$ 3 059.30/T UP 0.11% | Brent Crude Oil US$ 84.28/BBP UP +0.60% | Platinum US$ 1 084.88/OZ UP +2.19% Sport results: Premier League: Manchester United 3 vs 2 Newcastle | Brighton 1 vs 2 Chelsea LaLiga: Real Sociedad 1 vs 0 Valencia | Almería 0 vs 2 Barcelona | Las Palmas 2 vs 2 Real Betis | Celta Vigo 2 vs 1 Athletic Club | Getafe 0 vs 3 Atletico Madrid | Sevilla 0 vs 1 Cadiz | Rayo Vallecano 2 vs 1 Granada SerieA: Fiorentina 2 vs 2 Napoli European Championships Qualifying: Southampton 3 vs 1 West Bromwich Albion | Leeds United 4 vs 0 Norwich City English Championship: Southampton 3 vs 1 West Bromwich Albion | Leeds United 4 vs 0 Norwich City Weather: Katima Mulilo: 10° | 31° Rundu: 10° | 30° Eenhana: 12° | 31° Oshakati: 13° | 31° Ruacana: 12° | 31° Tsumeb: 14° | 29° Otjiwarongo: 12° | 27° Omaruru: 13° | 30° Windhoek: 12° | 27° Gobabis: 13° | 27° Henties Bay: 19° | 33° Wind speed: 41km/h, Wind direction: NE, Low tide: 06:32, High tide: 12:50, Low Tide: 18:28, High tide: 00:56 Swakopmund: 20° | 23° Wind speed: 30km/h, Wind direction: SE, Low tide: 06:30, High tide: 12:48, Low Tide: 18:26, High tide: 00:54 Walvis Bay: 22° | 32° Wind speed: 30km/h, Wind direction: SE, Low tide: 06:30, High tide: 12:47, Low Tide: 18:26, High tide: 00:53 Rehoboth: 12° | 27° Mariental: 16° | 29° Keetmanshoop: 17° | 29° Aranos: 16° | 29° Lüderitz: 19° | 35° Ariamsvlei: 16° | 31° Oranjemund: 14° | 31° Luanda: 24° | 28° Gaborone: 13° | 27° Lubumbashi: 11° | 27° Mbabane: 11° | 23° Maseru: 8° | 23° Antananarivo: 14° | 24° Lilongwe: 15° | 26° Maputo: 19° | 26° Windhoek: 12° | 27° Cape Town: 15° | 20° Durban: 16° | 24° Johannesburg: 15° | 24° Dar es Salaam: 24° | 32° Lusaka: 15° | 26° Harare: 12° | 26° Economic Indicators: Currency: GBP to NAD 23.01 | EUR to NAD 19.73 | CNY to NAD 2.51 | USD to NAD 18.15 | DZD to NAD 0.13 | AOA to NAD 0.02 | BWP to NAD 1.3 | EGP to NAD 0.38 | KES to NAD 0.14 | NGN to NAD 0.01 | ZMW to NAD 0.7 | ZWL to NAD 0.04 | BRL to NAD 3.55 | RUB to NAD 0.2 | INR to NAD 0.22 | USD to DZD 134.35 | USD to AOA 847.42 | USD to BWP 13.49 | USD to EGP 46.86 | USD to KES 130.48 | USD to NGN 1467 | USD to ZAR 18.15 | USD to ZMW 25.45 | USD to ZWL 321 | Stock Exchange: JSE All Share Index 79530.63 Up +0.03% | Namibian Stock Exchange (NSX) Overall Index 1754.58 Up +0.81% | Casablanca Stock Exchange (CSE) MASI 13426.13 Up +0.11% | Egyptian Exchange (EGX) 30 Index 26142.84 Up +3.27% | Botswana Stock Exchange (BSE) DCI 9151.06 Same 0 | NSX: MTC 7.75 SAME | Anirep 8.99 SAME | Capricorn Investment group 17.34 SAME | FirstRand Namibia Ltd 49 DOWN 0.50% | Letshego Holdings (Namibia) Ltd 4.1 UP 2.50% | Namibia Asset Management Ltd 0.7 SAME | Namibia Breweries Ltd 31.49 UP 0.03% | Nictus Holdings - Nam 2.22 SAME | Oryx Properties Ltd 12.1 UP 1.70% | Paratus Namibia Holdings 11.99 SAME | SBN Holdings 8.45 SAME | Trustco Group Holdings Ltd 0.48 SAME | B2Gold Corporation 47.34 DOWN 1.50% | Local Index closed 677.62 UP 0.12% | Overall Index closed 1534.6 DOWN 0.05% | Osino Resources Corp 19.47 DOWN 2.41% | Commodities: Gold US$ 2 414.72/OZ UP +1.55% | Copper US$ 5.04/lb UP +4.12% | Zinc US$ 3 059.30/T UP 0.11% | Brent Crude Oil US$ 84.28/BBP UP +0.60% | Platinum US$ 1 084.88/OZ UP +2.19%