李光鑫

2017-03-31 21:09:59

對哈勃望遠鏡的進程和花費很感興趣，找了些資料，具體如下：

Hubble Telescope was funded in the 1970s, with a proposed launch in1983. Congress eventually approved funding of US $36 million for1978. Construction of the main mirror began in 1979 and was completed by the end of 1981. In 1983 the telescope was named Edwin Hubble.

By technical delays, budget problems, NASA was forced to postponethe launch date until March and then September 1986. By this time,the total project budget had risen to US$1.175 billion.

But the project was beset again by the Challenger disaster(1986). When finally launched in 1990, Hubble's main mirror was found tohave been ground incorrectly, compromising the telescope's capabilities. The optics were corrected to their intended quality by a servicing mission in1993.

The Hubble cost-to-launch was $4.7 billion in FY 2010 dollars; The cost through SM-1 in 1993, when Hubble’s mirror problem was fixed, was $5.8 billion.

From its original total cost estimate of about US $400 million, the telescope cost about US $4.7 billion by the time of its launch. Hubble's cumulative costs were estimated to be about US$10billionin 2010, twenty years after launch.

以上材料參考WIKI網站和NASA報告"James Webb Space Telescope (JWST) IndependentComprehensive Review Panel (ICRP) Final Report" .NASA.p. 32.Retrieved September4, 2012.

哈勃重11110公斤，按美元匯率6.8計算，我給哈勃粗算了一筆經濟賬：

（1）1986年，即哈勃產品研制完畢時，哈勃共花費11.75億美元，每公斤約11萬美元，約72萬人民幣。這可是1986年當時的美元，現在物價漲了好多倍，折算到現在每公斤肯定超過11萬美元啦。

（2）1990年，哈勃發射時，哈勃共花費47億美元，根據資料這個數是折算至2010年的美元，1990年當時數字應沒那么大。這樣，折算至2010年，每公斤約42萬美元，約287萬人民幣。

（3）1993年，在軌維修光學系統，還是折算到2010年，相當于又花費了11億美元，約75億人民幣。

哈勃望遠鏡舉世聞名，對人類貢獻卓著，成果豐碩。看了它的建造進程和花費，感嘆不已，一句話：好東西不好做，好東西不便宜！