Astronomers at the Shanghai Observatory are facing a serious problem. Urban growth in nearby Shanghai has been contributing to light pollution for a long time, but is now reaching an unacceptable level. This light pollution dilemma has made the observatory's 1.56 meter telescope nearly unusable. Light pollution is more than a mere inconvenience, however. The high levels of artificial light has caused the observatory to refrain from participating in world-class research projects.
The above image shows a world map of light pollution levels. According to a 1985 recommendation by the International Astronomical Union (IAU), world-class observatories need dark skies, where the artificial light level is less than 10%. Light pollution levels at Shanghai's Sheshan observatory have been measured to be as high as 591%. As one could imagine, this would seriously hamper observations of dim and distant objects.
So now, Shanghai's astronomers must face a difficult move. The observatory, if it is to be of any use, must be relocated to a much darker site. One dark-sky site being considered is Tianhuangping, Anji City. Tianhuangping is situated at an altitude of 1,000 meters, where observing conditions should be greatly improved. Zhejiang authorities have also agreed to enact light pollution protection legislation for the area.
Light pollution is a problem that nearly all astronomers, both amateur and professional, must contend with. Some areas have it worse than others, while some are barely affected. It would be nice to see companies and institutions begin controlling light scatter, but chances are slim. So if your neighbor is an amateur astronomer, be nice and leave the lights off for them...
Clear (and dark) skies!
Tuesday, January 22, 2008
Shanghai Observatory Battles Light Pollution
Subscribe to:
Post Comments (Atom)
25 comments:
email me at mitchellblo@cssstudent.com
May 28, 2008 at 3:57 PM
E-mail has been replied to.
Thanks for the interest in the topic!
Sean
May 28, 2008 at 5:54 PM
Thank you for your answers.
They were really helpful.
Thank you again.
May 28, 2008 at 6:42 PM
zhengjx20160715
ralph lauren outlet
true religion jeans
instyler
cheap ray ban sunglasses
coach outlet
ray ban sunglasses uk
louis vuitton purses
oakley outlet
coach outlet online
hollister clearance
toms wedges
louis vuitton outlet
timberlands
nike air max uk
coach outlet
adidas yeezy
true religion outlet online
louis vuitton bags
oakley sunglasses
coach outlet store online
air force 1 trainers
ray bans
michael kors handbags
louis vuitton outlet stores
michael kors outlet online
louis vuitton outlet
adidas boost
louboutin femme
louis vuitton outlet stores
nike uk
cheap jerseys
adidas running shoes
gucci outlet
coach outlet clearance
jordan 3 powder blue
nike air max uk
polo ralph lauren
michael kors outlet
louis vuitton handbags
gucci outlet online
July 15, 2016 at 1:58 AM
Super website with a great sharing and amazing stories is ur web.. please keep doing what u do now.. thanks to you.
Togel Online Singapore
Togel Online Hongkong
Bandar Togel Singapore
Bandar Togel
Togel Online Terpercaya
Bandar Togel Online Terpercaya
Togel Online
Agen Togel Online Terpercaya
Agen Togel Online
agen togel
agen togel indonesia
togel sgp
daftar togel online
Togel Online terbesar
bandar Togel Online
October 2, 2016 at 3:43 PM
Super website with a great sharing and amazing stories is ur web.. please keep doing what u do now.. thanks to you.
Agen Bola Resmi
Bandar bola
Agen Bola Terpercaya
Agen Bola Terbesar
Agen Bola online
Judi bola
Berita Bola
Agen Sbobet
Agen Ibcbet
October 23, 2016 at 2:03 PM
Super website with a great sharing and amazing stories is ur web.. please keep doing what u do now.. thanks to you.
Togel Online Singapore
Togel Online Hongkong
Bandar Togel Singapore
Bandar Togel
Togel Online Terpercaya
Bandar Togel Online Terpercaya
Togel Online
Agen Togel Online Terpercaya
Agen Togel Online
agen togel
agen togel indonesia
togel sgp
daftar togel online
Togel Online terbesar
bandar Togel Online
November 12, 2016 at 1:21 PM
ve may bay di california
ve may bay di texas
ve may bay di Trung Quoc
ve may bay di Bac Kinh
ve may bay di Hang Chau
ve may bay di Tham Quyen
ve may bay di Thanh Do
Ve may bay di Thuong Hai
ve may bay di Quảng Châu
Ve may bay online
November 23, 2016 at 9:28 PM
jimmy choo
michael kors outlet
ray ban sunglasses
ugg outlet
supra shoes
michael kors handbags
polo outlet
moncler outlet
seahawks jersey
polo ralph lauren
June 23, 2017 at 4:57 AM
bandar togel
Nice Post
Nice post i like it so much.I am very pleased to see your website which have rich information.
Judi poker
Bandar togel
Taruhan bola
INEMPOKER
Genuinely exceptional article plus the granted wonderful know-how. We are consequently satisfied you just read this information. Currently click this payday loans spring-valley Cheers your current article granted wonderful know-how.
As of late, Administrations called no fax payday credits have turned out to be accessible offering advances to individuals without requiring much printed material. This article talks about faxless credits and why they might be an ideal answer for a few people.
Check Cashing chicago
20180822 junda
longchamp pas cher
longchamp solde
ray ban sunglasses
moncler outlet
brequet wathes
toms shoes
kate spade outlet
canada goose outlet
10 deep clothing
ray ban sunglasses
Togel Online
Prediksi Togel
Smilearrow Find best products values got thousands of online top most bought items key points, rankings, price, photos lot of cool stuff to get from
Searching for the Best Convertible Car Seat? Want to get a reliable place? need a detailed review? Browse here, you will get a list of 10 best convertible car seat to choose yours spending a very short time. A complete and easy to read buying guide is also available for you here
How to Use a Garment Steam. Add water to the steamer's tank. Plug it in. Allow the steamer to heat up all the way. Similar to a clothing iron, the head of the steamer is to be pressed up against your clothes. Lastly, allow your freshly-steamed clothes ample time to dry.
Steamer for Clothes that can get rid of all wrinkles on a matter of seconds, but use whatever you want to keep them hang.
Best Handheld Massager the best handheld back massager Reviews site. You should know about handheld massager’s size, price range etc. How each of them can benefit you.
Use a steam cleaner to get dirt, grime, bird poop etc. off of patio furniture. You can even use it on upholstered patio furniture and umbrellas.
Clothes Steamer Steamer for Clothes Garment Steamer U.S.A Turbo-Steam Shop for high quality Best clothes steamer, Steamer for Clothes, garment steamer, Fabric Steamer All kinds of Steam Cleaner on Turbo Steam at best prices
Best Clothes Steamer for all of your steaming needs as it easily distributes steam across the fabric to remove worst wrinkles.
Fabric Steamer is a powerful, yet portable, fabric and clothes steamer for all of your steaming needs. Our Turbo Steam takes only 45 seconds to heat up and to start generating steam and its steam delivery system evenly distributes steam across fabrics to remove even the worst wrinkles.
January 31, 2019 at 9:03 AM
Can you use راهنمای خرید this plugin to add مجله ریما files to the user’s account (i.e., can I, as the admin, go in and upload a PDF file to a specific user’s account, and perhaps have ضد فراماسونری that user get some notification that a file has been uploaded اسمارت مگ to their account?).
Post a Comment