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The house above appears a light cream during midday, but seems to be bluish white here in the dim light before full sunrise. Note the color temperature of the sunrise in the background. Video camera operators can white-balance objects that are not white, downplaying the color of the object used for white-balancing. For instance, they can bring ...
Coreopsis tinctoria, commonly known as plains coreopsis, garden tickseed, golden tickseed, or calliopsis, is an annual forb. The species is common in Canada (from Quebec to British Columbia ), northeast Mexico ( Coahuila , Nuevo León , Tamaulipas ), and most of the United States , especially the Great Plains and Southern States .
The color temperature of daylight varies with the time of day. It tends to be around 2,000 K shortly after sunrise or before sunset, around 3,500 K during "golden hour", and around 5,500 K at midday. The color temperature can also change significantly with altitude, latitude, season, and weather conditions.
Blue hour usually lasts about 20–96 minutes right after sunset and right before sunrise. Time of year, location, and air quality all have an influence on the exact time of blue hour. [ 7 ] For instance in Egypt (every 21st of June ), when sunset is at 7:59 PM : blue hour occurs from 7:59 PM to 9:35 PM.
Germination takes between 7 and 21 days at the optimal temperature of 75 degrees Fahrenheit; flowering begins between 50 and 60 days after germination; It prefers a soil pH between 6.0 and 8.5, reflecting its native habitat in the alkaline regions of Central America; Flowering is best in full sun, although partial shade is tolerated
Coreopsis basalis is a bushy annual up to 60 cm (2 feet) tall with finely cut foliage and showy round flower heads. Plants with internodes 4–7(–10) cm long with both basal and cauline leaves. The foliage is produced on the bottom 3/4–7/8 of plants height.
Coreopsis bigelovii is a species of flowering plant in the daisy or sunflower family, Asteraceae, with the common names Bigelow coreopsis and Bigelow's tickseed. [3] It is endemic to California. [4] The plant is known from the southern California Coast Ranges, southwestern Sierra Nevada, Transverse Ranges, and the Mojave and Colorado deserts.
Coreopsis nuecensoides is a perennial herb that grows up to 20 inches tall. The ray florets are yellow with red flecks near the base. The leaves are trifoliate. The inner phyllaries are glabrous. [2] [3] It primarily flowers from March to May, but will sometimes bloom again in the late fall. [3]