Edwin Powell Hubble (November 20, 1889 – September 28, 1953) was an American astronomer.
 He played a crucial role in establishing the fields of extragalactic astronomy and observational cosmology and is regarded as one of the most important astronomers of all time.
52266 Van Flandern, provisional designation 1986 AD, is a stony Phocaea asteroid from the inner regions of the asteroid belt, approximately 4 kilometers in diameter.
 It was discovered on 10 January 1986, by American astronomers Carolyn and Eugene Shoemaker at the Palomar Observatory in California, United States.
 The asteroid was later named for American astronomer Tom Van Flandern.
1566 Icarus ( ), provisional designation 1949 MA, is an extremely eccentric asteroid, approximately 1.4 kilometers in diameter.
 It is a near-Earth object of the Apollo group and the lowest numbered potentially hazardous asteroid.
 In 1968, it became the first asteroid ever observed by radar.
 Its orbit brings it closer to the Sun than Mercury and further out than the orbit of Mars, which also makes it a Mercury-, Venus-, and Mars-crosser.
 This stony asteroid and relatively fast rotator was discovered by German astronomer Walter Baade at the Palomar Observatory, California, on 27 June 1949.
 It was named after the mythological boy Icarus, who flew too close to the Sun.
5731 Zeus (1988 VP4) is an Apollo asteroid and near-Earth object discovered on November 4, 1988, by Carolyn Shoemaker at Palomar Observatory.
 Based on its observed brightness and assumed albedo it is estimated to have a diameter between 2.1 and 4.7 km.
2074 Shoemaker, provisional designation 1974 UA, is a stony Hungaria asteroid, Mars-crosser and suspected synchronous binary system from the innermost regions of the asteroid belt, approximately 4 kilometers in diameter.
 It was discovered on 17 October 1974, by astronomer Eleanor Helin at the Palomar Observatory.
 She named it after American astronomer Eugene Shoemaker.
4031 Mueller, provisional designation 1985 CL, is a Hungaria asteroid from the inner regions of the asteroid belt, approximately 4 kilometers in diameter.
 It was discovered on 12 February 1985, by American astronomer Carolyn Shoemaker at Palomar Observatory, California, and named after astronomer Jean Mueller.
Koposov II is a low-luminosity globular cluster in the constellation Gemini in the halo of the Milky Way galaxy.
 It was discovered, along with globular cluster Koposov I by S. Koposov et al. in 2007.
 Koposov I and Koposov II were described by their discoverers as the "lowest luminosity globular clusters orbiting the Milky Way," along with AM 4, Palomar 1, and Whiting 1.
4340 Dence (1986 JZ) is a main-belt asteroid discovered on May 4, 1986, by Carolyn S. Shoemaker at Palomar Observatory.
 Named in honor of Michael R. Dence executive director of the Royal Society of Canada.
Palomar 4 is a globular cluster of the Milky Way galaxy.
 It was discovered in 1949 by Edwin Hubble and again in 1955 by A. G. Wilson.
 It is 356,000 light-years away.
Koposov I is a low-luminosity globular cluster in the constellation Virgo in the halo of the Milky Way galaxy.
 It was discovered, along with globular cluster Koposov II by S. Koposov et al. in 2007.
 Koposov I and Koposov II were described by their discoverers as the "lowest luminosity globular clusters orbiting the Milky Way," along with AM 4, Palomar 1, and Whiting 1.

Question: When was the person who discovered Palomar 4 in 1949 born?
Answer: November 20, 1889