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7. In the 1990s, the Hipparcos space telescope succeeded in measuring 10 Lacertae's parallax p: 0.00308 arcseconds. You can compute the distance by taking the reciprocal of its parallax - kelly distance = 1/parallax or d = 1/p. Compute 10 Lacertae's distance from its parallax and compare it to the distance computed by the magnitude method in part 6. moll sou Of mo ni bib 8. Before the Hipparcos space telescope, which measured the parallaxes of over a million stars, the absolute magnitude of 10 Lacertae was highly uncertain. But now we've obtained a reliable, parallax-based distance for 10 Lacertae in Part 7, we can use that distance to compute a more accurate absolute magnitude for the star. The mathematical formula is M = m - [5 x log(d)] +5. (For the mathematical log function, use the key labeled log on your calculator.). In the formula, substitute 10 Laertae's apparent magnitude m and its "parallax distance" d from Part 7, and compute its new and improved absolute magnitude M