Civil Twilight Specfications
Passport 470CC Hull #135 Built 2004
Length Overall 48'10"
Length at Waterline 39'1"
Beam 14'2"
Draft 6'4"
Ballast 11,000 lbs
Displacement 30,611 lbs
Sail Area Standard 1,299 sf
Fuel Capacity 130 gal
Water Capacity 150 gal
Aux. Diesel Power 75 hp
Sail Inventory
Inner-mast furling Main
Roller Furling Genoa 120
Roller Furling Staysail
Assymetrical Spinnaker
Anchors
66 lb Spade on all chain rode
66 lb Bruce on rope rode
Fortress FX-33
Navigation/Safety Equipment
All required Coast Guard Safety Equip.
EPIRB
Raymarine color GPS Chartplotter with CMap Charts
Raymarine Color Radar
Raymarine Wind speed/direction, Depth sounder, and boat speed instruments
Icom 502 VHF Radio
Icom 802 Single-sideband Radio
Autopilot
Laptop with Nobeltec Charts
Complete Paper Charts
Mechanical
Diesel-fired forced hot air heat
Air conditioning
Refrigeration
Freezer
What does 'Civil Twilight' mean? According to Wikepedia,
This begins in the morning when the center of the Sun is less than 6° below the horizon (the point of civil dawn), and ends at sunrise. Evening civil twilight begins at sunset and ends when the center of the Sun is more than 6° below the horizon (the point of civil dusk).
The brightest stars appear during civil twilight, as well as planets, such as Venus which is known as the 'morning star' and/or 'evening star'. During this period there is enough light from the Sun so that artificial sources of light are not needed to carry on outdoor activities. Civil twilight can also be described as the limit at which twilight illumination is sufficient, under good weather conditions, for terrestrial objects to be clearly distinguished; at the beginning of morning civil twilight, or end of evening civil twilight, the horizon is clearly defined and the brightest stars are visible under good atmospheric conditions in the absence of moonlight or other illumination.