Adventure Sports

Astronomy, Stargazingand Green Laser Pointers

Green laser pointers and Astronomy

There is nothing more frustrating in astronomy that than unsuccessfully trying to identifying an object in the night sky to a companion by waving your arms, pointing fingers, describing and gestulating. An elegant, simple and very effective solution to this problem is to use green lasers pointers to point out objects in the sky.

Green laser pointers are high technology gadgets that are becoming more and more popular in astronomy. Not only are green laser pointers ideal for pointing out celestial objects, they are also very useful for aligning telescopes and for atrophotography.

Why green laser pointers

Green laser pointers are the preferred laser pointer color for astronomy because green is the most visible laser pointer color. The reason why green is more visible is the human eye is most sensitive to green light. The other reason is the effect of light in the earth’s atmosphere. Light is visible in the sky when the atmosphere scatters it and higher wavelengths are scattered more than higher wavelengths. Green is a medium wavelength so it scatters more and is more visible than longer wavelengths such as red.

Other applications

Using green laser pointers to point out celestial object to people next to you is not the only application for laser pointers in astronomy. A green laser pointer can also be mounted on a telescope using a bracket or by holding the laser by hand in the groove parallel to the telescopes optical axis. The green laser pointer beam clearly shows where the telescope is pointing and the object being viewed through the telescope.

A green laser pointer mounted on a telescope can also makes aligning the telescope to a celestial object much faster and easier.

How powerful should the laser pointer be?

Green laser pointers can range in power levels from 1mW all the way to 200mW so deciding which power level to use can be tricky. The points to consider when choosing the power level for an astronomy laser are

-The number of people star gazing with you. If it is just one person, a low power such as 5mW will be suitable. If you are stargazing with a large group of people who will not be standing next to you, the laser needs to be more visible so a high power level such as 100mW would be suitable.

-The level of ambient light. If you are stargazing at dawn/dusk, during a full moon or in built up areas where there is a lot of light pollution, a low powered beam such as 5mW would be harder to see. You would generally need at least 50mW or more in this kind of situation.

Higher powered laser pointers are not always better because any glare from them can easily ruin your night vision and can provide a distraction. Many stargazing nights have been ruined when people have been paying more attention to the new and exotic high power laser used to point out objects than the actual objects themselves.

Caution

Deliberately pointing a laser at aircraft is a very serious offence in every country so avoid star gazing near airports and do not use a laser when there is an aircraft in the section of the sky being viewed.

Article is courtesy of Dragonlasers – No 1 lasers, laser pointer and green laser online store

About the Author

Frank is from Dragonlasers at http://www.dragonlasers.com

$650 Burning Green Laser Contest!

QUANTA R RUBY TATTOO REMOVAL LASER STUBBORN GREENS AND SKY BLUE TATTOO INK $68,995.00

Stage Outdoor 5W Professional Green Cartoon Animation Laser Light Lighting 30K $16,998.80

Virtek Gerber Technology LPS-7GL Green Laser Projector Aerospace Composite NR $12,888.88

5000mw Green DMX512 ILDA dj Laser stage light 40k $11,999.00

10000 mW DUAL COHERENT RED GREEN BLUE ION LASERS 10 Watt Rainbow Optical Bench $8,987.65

Viasho 532nm 8W green laser,both TTL/analog mode $8,399.00

5000mw 532nm green laser Diode ANALOG for lightshows $7,888.00

X-Laser XB-2KG X-Beam Green 2000mW Beamers w/ Animation $7,799.00

5000mw 532nm green laser Diode TTL for lightshows $7,788.00

NRG 2W GREEN LIGHT SHOW NIGHTCLUB LASER + QUICKSHOW $7,109.10

5000mw 5W 532nm green laser+TTL/Analog+Power supply+TEC $6,500.00

ASML / SVG Green Laser Head 4022.455.0986 JDS Uniphase $4,999.99

15 WATT / 15000 mW ARGON ION BLUE GREEN LASER $4,995.66

X-Laser X-Beam Green 1000mW Laser $4,899.00

Viasho 532nm 4W green laser,both TTL/analog mode $4,699.00

2000mW / 2W Green DMX ILDA Laser with DT 40K Pro + Pangolin QuickShow 2. 0 $4,250.00

NRG 1.5W GREEN LIGHT SHOW LASER PROJECTOR + QUICKSHOW $4,342.87

2000mw Green DMX512 ILDA dj Laser stage light 40k $4,299.00

X-Laser X-Beam G1000 1W Green Xlaser Xbeam Stage DJ Light PROAUDIOSTAR $4,289.00

2000mW 532nm CNI green animation laser 40Kpps & flightcase analog $4,000.00

NRG 1.5W GREEN LIGHT SHOW LASER PROJECTOR SYSTEM ILDA $3,789.94

X-Laser XB-500G X-Beam Green 500mW Beamers w/ Animation $3,565.00

NRG 1W GREEN LIGHT SHOW LASER PROJECTOR + QUICKSHOW $3,554.55

Microh Pegasus RGB Red/Green/Blue Laser DMX -B STOCK- $3,299.00

3Watt (3000mW) RGB Laser 30K 1W Blue 1W Red 1W Green $2,950.00

Topcon TP-L4GV Green Pipe Laser Complete SCOPE 2 BATTERIES REMOTE STAND CLEAN $2,999.00

NRG 1W GREEN LIGHT SHOW LASERS NIGHTCLUB LASER PROJECTOR $3,001.62

X-Laser Skywriter G500 Green !!!!BRAND NEW!!!! @ THE BEST PRICE!! $2,999.99

X-Laser X-Beam Series G500 500mW Green XLASER XBEAM Stage DJ Light $2,999.00

* 5000mW * 5W BLUE GREEN ARGON AR+ COHERENT LASER *BIG* $2,495.77

Pack of 4 ROYAL 3D BLUE & GREEN laser effect party lazer show B2DJ $2,799.99

Lot of 4 AMERICAN DJ ROYAL 3D BLUE & GREEN laser effect party lazer show $2,799.96

1500mw Green DMX ILDA Stage Club DJ Laser lighting with DT40pro scanner $2,650.00

Topcon TP-L4G Green Beam Pipe Sewer Laser with Case Ready to Work! $2,749.99

DJ Stage 1000mW 1W Green Animation Cartoon Laser Lighting Show Party Projector $2,598.80

Laser Alignment 6790 Green Beam Pipe Laser $2,550.00

Laser Alignment 6790 Green Beam Pipe Laser System $2,499.00

NRG 500mW GREEN LIGHT SHOW NIGHTCLUB LASER + QUICKSHOW $2,522.94

1500mW 532nm CNI green animation laser 40Kpps & flightcase analog $2,500.00

CHRISTOPHER KANE Bright Green Leather Laser Cut Crew Neck Jacket Sz 8 $2,499.00

2w 532nm green CNI laser Diode ANALOG for lightshows $2,488.00

Pack of 4 ROYAL SKY party rave dance club BLUE & GREEN laser lazer show B2DJ $2,399.99

Lot of 4 AMERICAN DJ ROYAL SKY rave dance club BLUE & GREEN laser show $2,399.96

Lot of 4 AMERICAN DJ HYPNOTIC RGB LASER red green & blue web light lazers $2,399.96

2w 532nm green CNI laser Diode TTL for lightshows $2,388.00

2w 532nm green laser Diode ANALOG for lightshows $2,299.00

2w 532nm green laser Diode TTL for lightshows $2,199.00

1000mW /1W Pro Green Analog DMX ILDA Laser with 40K + Pangolin QuickShow2.0 $1,990.00

DJ Stage 800mW Green Animation Cartoon DMX512 ILDA Laser Light Projector 30K $2,098.80

1W 1000mW Green Animation+Beam Laser Light Show DJ ILDA DMX512 532nm Projector $1,989.00

Terrapin Pocket Laser Range Finder Green $2,000.00

Viasho 532nm 2W green laser,both TTL/analog mode $2,000.00

– 40Kpps — 1500mW 1.5 Watt Professional Green Laser Light Show System ILDA 40K $1,995.00

1000mW / 1W Pro Green DMX ILDA Laser with DT 30K Pro $1,990.00

NRG 500mW GREEN LIGHT SHOW NIGHTCLUB LASER SYSTEM ILDA $1,970.01

– 30Kpps — 1500mW 1.5 Watt Green Laser Light System for LightShow ILDA DJ 30K $1,916.00

1000mw Green DMX512 ILDA dj Laser stage light 40k $1,899.00

– 20Kpps — 1500mW 1.5 Watt Green Laser Light Show System With ILDA for DJ 20K $1,836.00

1000mw Green DMX512 ILDA dj Laser stage light 30k $1,799.00

@ 40Kpps @ 1200mW Professional Green Laser Light Show System with ILDA ADJ 40K $1,799.00

Laser Printed Split Bamboo Citrus Green Placemat 18 x 12 Set / 6 $24.00 Floor mats, table mats runners and placemats. These brightly colored mats, many reminiscent of antique silk Kimono dressing gowns will add an air of the orient to your patio floor or dining table. Available as 2×3 and 3×5 mats and placemats. Non skid rubber backing. The 2×3 also makes an impressive center mat for a large dining table….

Benson Mills Felt Scroll Placemat, Set of 4 Dress your table with these elegant round scroll felt placemats. Made with 100-percent felt. The perfect addition for your home decor. Available in 4 elegant colors….

Kiwi Green Cupcake Wrappers – Set of 12 – Use Liners with Toppers, Picks, Sprinkles & Frosting on Cupcakes $7.95 The Simply…Wrappers solid color cupcake wrapper collection includes many widely used colors from any artist’s pallet, and incorporates them into easy-to-match cupcake wrappers that will coordinate with just about any event. With almost every color in the rainbow, the solid color cupcake wrappers are perfect in order to color match for weddings, themed parties, bridal and baby showers, graduation…

Green Machine Laser Beam $6.99 …

Music From The Ocean Picture Replaces Xerox 113R00721, 113R00725 Made In USA 6,000 High Yield Yellow Compatible Toner Compatible With: Phaser 6180 Phaser 6180n Phaser 6180dn Phaser 6180 mfp dn Phaser 6180 MFP Series Phaser 6180 mfp n All of our products come with a one year warranty from the date of sale. We offer a NO HASSLE GUARANTEE. If our products fail to perform up to your standards simply return it for a refund. We gua…

Bynovel Laser Eye Protection Safety Glasses Goggles Goggle Glass Shield for Green Blue Laser Pointer $5.98 Laser exposure to the eyes is very dangerous and must be prevented. This accessory is imperative to your eye protection, and does the job quite well. Please note: Do not look directly at the laser beam under any circumstances, even with protective goggles. These highly functional laser protection goggles will protect your eyes from excessive 532nm green and blue laser rays. Item comes with FREE…

Nebo 5569 ProTec Elite HP190 High-Powered Firearm Light $33.57 The NEbo Protec Elite HP190 uses a highly efficient CREE Q5 LED to generate 190 lumens of powerful bright white light. An ideal flashlight for military; law enforcement; and self-defense. The reflector lens focuses the beam for long distance lighting while also producing enough light to support the users peripheral vision. The compact body of the HP190 is constructed of aircraft grade anodized alu…

Nebo 5077 CSI 8 LED Black Tactical Laser Self Defense Flashlight Model $10.49 The Nebo CSI Tactical Flashlight is the perfect flashlight! With an anodized aircraft grade aluminum construction; this flashlights design is water-resistant. Adding to the toughness is the aggressive self-defense face and anti roll body design. This flashlight features 8 White LEDs and a red laser pointer….

The Kryptonyte Green Laser System $217.29 The Kryptonyte Green Laser was designed for use with the modern rifle, carbine or any weapon with three inches of picatinny rail for mounting. This amazing sighting system is made out of aircraft grade 6061 aluminum with T3 hardness.

NcStar Weaver Base and Pressure Switch Green Laser $42.01 Brand: NCStarWeaver Base and Pressure Switch Green LaserModel: APRLSG

NcStar Pistol and Rifle Compact Green Laser $53.69 Brand: NCStarName: Compact Pistol and Rifle Green LaserQuick-release weaver mount

NcStar 1-inch Scope Mount with Green Laser $52.99 Brand: NCStar1-inch Scope Mount with Green LaserModel: ASLG

NcStar Red/ Green Laser with Weaver Base and Pressure Switch $69.04 Brand: NCStarRed/Green Laser with Universal Rifle Barrel Mount and Pressure SwitchModel: ARLSRG

NCStar Liberator Combo 4×30 Compact Rifle Scope and Green Laser $114.99 Brand: NCStarLiberator Combo 4×30 Compact Scope and Green Laser Rifle Scope (MTAK, SEC430G, RB29, APRLSG)Model: KAKSECRLG

5mW Tactical Green Laser Sight $99.99 This GLX Laser Sight is designed with an accessory rail mounted under the laser. The T6 aluminum body allows for the GLX laser to provide a strong stable platform to mount accessories to its military standard picatinny rail.

HiRO H50181 4-in-1 Black Wireless Green Laser Pointer/ Multimedia Control $58.99 Focus on connecting with your audience using the HiRO laser pointer and multimedia control. The control allows you to operate your computer from an extended distance so that you can give presentations with confidence.

Chauvet Eclipse LED Laser Effect $282.41 The Chauvet Eclipse LED laser effect light adds an exciting red and green laser star field to a deep blue, high-power LED aura effect. The Eclipses’ independently-controllable laserscan be dimmed.